This organ covers the body and provides a protective barrier.
What is the skin?
These bones form the fingers and thumb.
What are the phalanges?
These bones form the toes.
What are the phalanges?
This movement bends a joint, decreasing the angle between the bones.
What is flexion?
This hard, visible part of the nail is made mainly of keratin.
What is the nail plate?
This is the outermost main layer of the skin.
What is the epidermis?
These five bones form the palm of each hand.
What are the metacarpals?
This is the anatomical name for the kneecap.
What is the patella?
This movement straightens a joint, increasing the angle between the bones.
What is extension?
This part of the nail extends beyond the end of the finger or toe.
What is the free edge?
This layer beneath the epidermis contains blood vessels, nerves and glands.hat is the dermis?
What is the dermis?
These eight small bones form the wrist.
What are the carpals?
These five long bones lie between the tarsals and the toe bones.
What are the metatarsals?
This superficial, two-headed muscle on the front of the upper arm helps bend the elbow and turn the palm upwards.
What is the biceps brachii?
This tissue lies directly beneath and supports the attached nail plate.
What is the nail bed?
These glands produce sebum, which helps lubricate skin and hair.
What are sebaceous glands?
In the anatomical position, this forearm bone lies on the thumb side.
What is the radius?
This larger, medial lower-leg bone is commonly called the shinbone.
What is the tibia?
This large superficial calf muscle helps point the foot downwards at the ankle.
What is the gastrocnemius?
This is the growth region where new nail plate cells are produced.
What is the nail matrix?
These two cooling responses involve producing sweat and widening blood vessels near the skin surface.
What are sweating and vasodilation?
These two bones form the forearm. Name both.
What are the radius and ulna?
This tarsal bone forms the heel.
What is the calcaneus?
This muscle beside the front of the tibia lifts the foot towards the shin and helps turn the sole inwards. Its name refers to the tibia.
What is the tibialis anterior?
This tissue beneath the free edge helps form a protective seal between the nail plate and fingertip.
What is the hyponychium?