a line of connected bones going down from your neck to tail bone in the middle of the back

脊柱, 脊椎
artificial teeth designed to replace missing natural teeth, often used for cosmetic or functional purposes

假牙, 义齿
a piece of body tissue that is made tight or relaxed when we want to move a particular part of our body

肌肉, 肉汁
a place in the body where two bones meet, enabling one of them to bend or move around

关节, 接头
the bony structure that surrounds and provides protection for a person's or animal's brain

颅骨, 头骨
the part of the body between the ribs and hips, which is usually narrower than the parts mentioned

腰部, 腰
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, 肾上腺激素
any blood vessel, carrying the blood to different organs of body from the heart

动脉, 血管
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, 肩锁骨
an arm or a leg of a person or any four-legged animal, or a wing of any bird

肢体, 肢
the row of small bones that are joined together down the center of the back of the body

脊柱, 脊椎
the lower part of the body below the chest that contains the digestive and reproductive organs

腹部, 肚子
the branch of science that is concerned with the physical structure of humans, animals, or plants

解剖学, 形态学
