An antler is a bony structure that is unique to members of the deer family, including deer, elk, moose, and reindeer. They are typically found only in males, although female reindeer also possess antlers in some populations. Antlers are made of bone tissue and are composed of a complex network of blood vessels and living cells during their growth phase. They are branched structures that emerge from the frontal bones of the skull and continue to grow and develop each year. Antlers serve various purposes, including defense, dominance displays, and attracting mates during the breeding season. They are shed and regrown annually through a process called antler casting, which involves the shedding of the outer velvet layer and eventual hardening of the bony core. The size, shape, and number of antler branches can vary greatly among species and even among individuals within a species, making them an intriguing feature of many ungulate species.

What is an "antler"?

antler

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A paw is a structure found in various animals that is typically located at the end of the leg and used for walking, running, and other forms of locomotion. It is composed of a combination of bones, muscles, tendons, ligaments, and soft tissue, and its specific shape and size vary depending on the species. Paws typically include pads or claws that help animals grip the ground, climb trees or burrow into the soil. They also contain sensory receptors that allow animals to feel the texture and temperature of the surfaces they walk on. Some animals have specialized paws that have evolved for specific functions such as digging, swimming, or grasping prey.

What is a "paw"?

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Horn refers to a hard, pointed, and often curved growth that extends from the head of certain animals, such as cattle, goats, and rhinoceroses. It is composed of a tough protein called keratin and serves various purposes depending on the species. Horns can be used for defense against predators, as a symbol of dominance and territoriality, for ritualistic or decorative purposes, or even as a sound-producing instrument. Unlike antlers, which are shed and regrown annually, horns are usually permanent structures that continue to grow throughout the animal's life. They are an iconic feature of many species and play a significant role in their biology and behavior.

What is "horn"?

horn

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hindlimb

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Whiskers, also known as vibrissae, are specialized hairs that grow on the face and other parts of the body of certain mammals, including cats, dogs, and seals. These sensory hairs are thicker than the other hairs on the body and are deeply embedded in hair follicles surrounded by blood vessels and nerves. Whiskers are used by animals to sense their environment by detecting even the slightest movement, air currents, and vibrations in the surrounding space. They help animals navigate in the dark, detect prey, and avoid predators. Whiskers are particularly important for nocturnal animals, who rely on their sense of touch to find their way around. Some animals can even move their whiskers independently to improve their perception of their surroundings.

What is a "whisker"?

whisker

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fang

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A cloven hoof is a specialized foot structure found in certain mammals, such as cattle, goats, sheep, and deer. It refers to a hoof that is divided into two distinct toes or digits, creating a distinct split appearance. The two halves of the hoof, known as the claws, are supported by a hard, keratinized material. This adaptation provides these animals with stability and balance on various terrains, including rocky surfaces and uneven ground. The cloven hoof is also associated with the grazing habits of these animals, allowing them to efficiently navigate and forage in their natural environments. Additionally, the cloven hoof is often linked to cultural and religious symbolism, representing different meanings and beliefs across various societies throughout history.

What is a "cloven hoof"?

cloven hoof

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A snout is a prominent and elongated facial feature found in many animals, particularly those in the mammalian and reptilian groups. It refers to the front part of the head that extends beyond the mouth and contains the nostrils. The shape and size of the snout can vary greatly depending on the species. It is typically covered in skin, often with specialized sensory structures such as whiskers, tactile hairs, or specialized receptors. The snout serves various functions depending on the animal. It can be used for feeding, sniffing, digging, or as a sensory organ to detect and locate food, mates, or potential threats. In some species, the snout may also play a role in communication, defense, or as a specialized tool for manipulating objects in the environment. Overall, the snout is an important and versatile adaptation that helps animals interact with their surroundings and fulfill their ecological roles.

What is a "snout"?

snout

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A flipper is a specialized limb found in certain animals, particularly marine mammals such as seals, sea lions, and whales. It is characterized by its paddle-like shape, consisting of a broad and flattened structure supported by bones and covered in a layer of skin. The flipper is primarily adapted for aquatic locomotion and maneuverability. Its streamlined form allows for efficient movement through water, enabling animals to swim, dive, and navigate with agility. The flipper's muscles provide the strength and flexibility necessary for propulsion and control in the aquatic environment. In some species, such as seals and sea lions, the flipper also serves as a functional limb on land, aiding in movement and stability. The flipper's design and function are remarkable adaptations that enable marine mammals to thrive in their marine habitats, facilitating their hunting, mating, and survival in the aquatic realm.

What is a "flipper"?

flipper

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A hump is a distinctive anatomical feature commonly associated with certain large mammals, such as camels and bison. It is a rounded, protruding area located on the back or shoulders of the animal. The hump is primarily composed of fat tissue, which serves as an energy reserve for the animal during times of scarcity, allowing it to survive in arid or harsh environments. In camels, the hump stores fat that can be metabolized for sustenance and water when food and water sources are limited. The hump is an evolutionary adaptation that enables these animals to thrive in challenging habitats and withstand the demands of their unique ecological niche.

What is a "hump"?

hump

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hock

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tail

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A fetlock is a joint located on the lower part of a horse's leg, between the cannon bone and the pastern. It is an important point of support and flexibility for the horse during movement. The fetlock joint consists of tendons, ligaments, and bones, allowing the horse to extend and flex its leg while maintaining stability. It is particularly vulnerable to injury and requires proper care and monitoring to ensure the horse's soundness and well-being.

What is a "fetlock"?

fetlock

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A forelock is a tuft of hair that grows between a horse's ears, falling down onto its forehead. It is typically longer and thicker than the rest of the mane and often styled or braided for practical or decorative purposes. The forelock not only adds to the horse's appearance but also serves a functional role by helping to protect the horse's eyes from insects, debris, and elements. It is an important part of grooming and care, requiring regular cleaning, brushing, and attention to maintain its health and appearance.

What is a "forelock"?

forelock

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A teat is a nipple-like structure found on female mammals, specifically on the udder or mammary gland. It is a vital component of the reproductive and lactation systems. The teat is responsible for delivering milk to the young offspring, allowing them to nurse and receive essential nutrients for their growth and development. It typically has a cylindrical shape with a small opening at the tip, through which milk is released. The teat is sensitive and can be gently stimulated to facilitate milk flow during nursing. It is an important part of maternal care and plays a crucial role in the nourishment and nurturing of young animals.

What is a "teat"?

teat

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The hoof is a tough and hard outer covering found on the lower extremities of certain animals, particularly ungulates like horses, cows, and deer. It serves as a protective structure and supports the weight of the animal, allowing for locomotion and stability on various terrains. The hoof is composed of a dense keratinized material, similar to human nails, and is divided into distinct parts, including the wall, sole, and frog. The hoof plays a vital role in the animal's movement, enabling it to graze, run, and navigate its environment effectively. Regular hoof care and maintenance are essential for the overall health and well-being of the animal.

What is a "hoof"?

hoof

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hindquarters

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The udder is a mammary gland located on the lower abdomen of female mammals, such as cows and goats. It serves as the primary organ for milk production and consists of multiple teats through which the milk is extracted. The udder plays a vital role in nourishing and nursing the young offspring of these animals.

What is an "udder"?

udder

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A tusk is a long, pointed, and often curved tooth that protrudes from the mouth of certain animals, most notably elephants, walruses, and narwhals. These elongated teeth are typically made of ivory, a dense and durable material. Tusks serve various purposes depending on the species. They can be used for defense, digging, gathering food, or as a display of dominance during mating rituals. The size and shape of tusks can vary greatly between species and even individuals, with some reaching impressive lengths. Tusks are iconic features of these animals and hold cultural and historical significance.

What is a "tusk"?

tusk

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the shank refers to the lower part of the leg, specifically the portion between the knee and the ankle. It includes the tibia and fibula, which are the two long bones that form the lower leg. The shank plays a crucial role in weight-bearing, stability, and locomotion, allowing for walking, running, and other lower-limb movements. Understanding the anatomy and function of the shank is important for overall lower limb strength, balance, and mobility.

What is "shank"?

shank

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underbelly

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muzzle

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forefoot

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rump

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A proboscis is a long, flexible appendage or organ found in certain animals and some mammals. It is typically located on the head and is used for various functions such as feeding, drinking, sensing, or manipulating objects. The proboscis of an elephant, known as a trunk, is a highly versatile and muscular organ that serves multiple purposes, including grasping objects, lifting, smelling, and even making sounds. The length and structure of a proboscis can vary greatly across species, but its adaptability and specialized functions make it a remarkable adaptation for these animals to interact with their environment in unique ways.

What is a "proboscis"?

proboscis

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A pouch is a specialized anatomical structure found in certain animals, particularly marsupials. It is a soft, external pocket of skin that is typically located on the abdomen or lower body of the animal. The pouch serves as a protective enclosure for carrying and nurturing the young offspring, known as joeys, after birth. The pouch is unique to marsupials and provides a warm and secure environment where underdeveloped newborns can continue their development and receive essential care from their mothers. The pouch is lined with mammary glands that produce milk, allowing the joeys to attach to a teat and continue their growth and nourishment. As the joeys grow and mature, they gradually spend less time inside the pouch until they eventually leave and become more independent. The pouch is a distinctive feature of marsupials and plays a vital role in their reproductive and parenting strategies.

What is a "pouch"?

pouch

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squamosal

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ungual

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The thymus is a glandular organ located in the upper chest region, behind the breastbone. It plays a vital role in the development and maturation of T lymphocytes, a type of white blood cell that is crucial for immune system function. The thymus is most active during childhood and adolescence, gradually decreasing in size and activity as we age. It helps educate and train T cells to recognize and respond to foreign substances, such as pathogens or cancer cells while avoiding attacks on the body's own tissues. The thymus also produces several hormones, such as thymosin, that contribute to the maturation and proper functioning of immune cells. Overall, the thymus is an essential component of the immune system, contributing to its ability to defend against infections and maintain overall health.

What is "thymus"?

thymus

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The rhinarium is a specialized area of moist, hairless skin found on the nose of certain animals, particularly mammals such as dogs, cats, and many other species. It is characterized by a highly sensitive surface covered in small, specialized sensory receptors that help these animals detect and interpret various chemical cues in their environment. The rhinarium assists in their sense of smell, allowing them to gather important information about their surroundings, locate food, identify potential mates, and navigate their surroundings with precision. Its structure and function contribute to the remarkable olfactory abilities exhibited by these animals.

What is "rhinarium"?

rhinarium

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The reticulum, also known as the "honeycomb," is a chamber within the digestive system of ruminant animals, such as cows, sheep, and goats. It is one of the four compartments of their specialized stomach, along with the rumen, omasum, and abomasum. The reticulum has a unique structure characterized by a honeycomb-like network of ridges and compartments, which provides mechanical assistance in the breakdown of ingested plant material. It acts as a storage and fermentation chamber, allowing the microbial population within the reticulum to break down fibrous food particles through fermentation and microbial digestion.

What is "reticulum"?

reticulum

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The omasum is a chamber within the stomach of ruminant animals, located between the reticulum and abomasum. It serves as a crucial site for further digestion and absorption of nutrients. The omasum is characterized by numerous folds and papillae, which increase the surface area available for nutrient absorption. Its primary function is to remove excess water from the digesta and further break down plant material through mechanical action. The omasum plays a vital role in the overall digestive process of ruminants, contributing to the efficient extraction of nutrients from their plant-based diet.

What is "omasum"?

omasum

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The abomasum is the true stomach of ruminant animals, such as cows, sheep, and goats. It is the fourth chamber of their complex stomach system. Unlike the preceding chambers, the abomasum functions similarly to the stomach of monogastric animals, secreting gastric juices and enzymes to break down food further. It plays a crucial role in the digestion and absorption of nutrients from the ingested plant material. The abomasum is responsible for the breakdown of proteins, fats, and carbohydrates, allowing for their subsequent absorption into the bloodstream. In this way, the abomasum contributes to the overall digestion and nourishment of ruminant animals.

What is "abomasum"?

abomasum

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The reticulorumen is a stomach chamber found in ruminant animals like cows, sheep, and goats. It has a honeycomb-like structure with folds and papillae, housing microorganisms that aid in fermenting plant materials. This fermentation process produces energy-rich volatile fatty acids. The reticulorumen acts as a storage and mixing chamber for food, allowing for rumination and re-chewing. It is vital for ruminants to extract nutrients from plant-based diets.

What is "reticulorumen"?

reticulorumen

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The philtrum is a vertical groove or depression that runs from the base of the nose to the upper lip in humans. It is a distinct feature of the midline of the face. The philtrum is formed during embryonic development and is the result of the fusion of the medial nasal processes. It serves both functional and aesthetic purposes. Functionally, the philtrum helps direct the flow of fluids from the nose to the mouth, facilitating activities such as drinking and eating. Aesthetically, it contributes to the overall facial appearance, adding depth and contour to the region between the nose and upper lip. The philtrum varies in size and prominence among individuals, and its shape and characteristics can be influenced by genetic factors.

What is "philtrum"?

philtrum

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Here you will learn some words related to the anatomy of mammals in English such as "paw", "tusk", and "fang".

“哺乳动物解剖学”的英文单词