a line of connected bones going down from your neck to tail bone in the middle of the back
脊柱, 脊椎
定期锻炼有助于加强脊柱周围的肌肉。
the front part of the body between the neck and the stomach
胸部, 胸腔
当他跑上楼梯时，他感到胸口有跳动。
artificial teeth designed to replace missing natural teeth, often used for cosmetic or functional purposes
假牙, 义齿
牙医推荐假牙以提高她的咀嚼能力。
a piece of body tissue that is made tight or relaxed when we want to move a particular part of our body
肌肉
定期锻炼有助于建立和塑形肌肉。
the area between the neck and the stomach
胸部, 胸腔
他的胸部紧绷，挣扎着呼吸，感到胸部有重量。
the back part of the foot, below the ankle
脚跟
长时间跑步后，她感到脚跟一阵剧痛。
a place in the body where two bones meet, enabling one of them to bend or move around
关节, 接合处
他在运动时伤了肩膀的关节，导致活动受限和疼痛。
each of the two organs in the chest that helps one breathe
肺, 肺部
肺是呼吸过程中负责与血液交换氧气和二氧化碳的重要器官。
each of a group of long thread-like structures in the body that carry messages between the brain and other parts of the body, sensing things is a result of this process
神经, 神经纤维
any vital part of the body which has a particular function
器官
她捐出了自己的一个肾脏，拯救了一个需要健康器官的人的生命。
the structure of bones supporting the body of an animal or a person
骨架, 骨骼
考古学家仔细检查了古代骨骼。
the bony structure that surrounds and provides protection for a person's or animal's brain
头骨, 颅骨
法医调查员检查了头骨以确定死因。
the part of the body between the ribs and hips, which is usually narrower than the parts mentioned
腰, 腰部
她紧紧地系上腰带，围绕她的腰部，以强调她的沙漏型身材。
the joint connecting the hand to the arm
手腕, 腕关节
她手腕上戴着一个色彩鲜艳的手镯。
a body hormone produced in case of anger, fear, or excitement that makes the heart beat faster and the body react quicker
肾上腺素
any blood vessel, carrying the blood to different organs of body from the heart
动脉, 血管
动脉粥样硬化是一种斑块在动脉内部积聚的病症，可能会限制血流并导致心脏病发作和中风等严重健康问题。
the flow and movement of blood around and in all parts of the body
循环
由于腿部血液循环不良，她感到头晕。
either of the pair of bones that go across the top of the chest from the base of the neck to the shoulders
锁骨, 颈骨
X光显示锁骨有清晰断裂，需要立即就医。
the firm, pink flesh around the roots of teeth at the top and bottom of the mouth
牙龈, 齿龈
适当的牙齿护理对于保持健康的牙龈至关重要。
the soft parts of the human body
肉, 软组织
法医检查了伤口以确定穿透肉的深度。
a chemical substance produced in the body of living things influencing growth and affecting the functionality of cells or tissues
激素, 荷尔蒙物质
肾上腺素是一种应激激素，使身体准备好应对“战斗或逃跑”反应。
an arm or a leg of a person or any four-legged animal, or a wing of any bird
肢体, 手臂或腿
鸟类依靠它们强壮的肢体肌肉起飞并在天空中翱翔。
a vital organ in the body that cleans the blood of harmful substances
肝脏, 肝的
肝炎是一种影响肝脏的病毒感染，如果不及时治疗，可能会导致这一重要器官的炎症和损伤。
the rhythmic beating of the blood vessels created when the heart pumps, especially felt on the wrist or at the sides of the neck
脉搏, 跳动
the row of small bones that are joined together down the center of the back of the body
脊柱
正确的姿势有助于保持脊柱的自然对齐并防止背痛。
a group of cells in the body of living things, forming their different parts
组织, 细胞组织
医生在显微镜下检查了组织以确定是否存在任何异常。
any tube or vessel that carries blood to one's heart
静脉, 血管
静脉有助于将血液从腿和手臂移回心脏。
the lower part of the body below the chest that contains the digestive and reproductive organs
腹部, 肚子
在她重要的演讲之前，她感到腹部有一种颤动的感觉，这是紧张的明显迹象。
