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Questions on the limbs and joints of the body.

What is the trunk of your body?—­“All the body but the head and limbs.”

Which are your limbs?—­“My two arms and my two legs.”

How many limbs have you?—­“Four.”

How many parts has your arm?—­“Two parts:  my upper arm and my fore-arm.”

How many parts has your leg?—­“Two parts:  my thigh and my lower leg.”

How many joints has your arm?—­“Three joints:  my shoulder joint, my elbow joint, my wrist joint.”

How many joints has your leg?—­“Three joints:  my hip joint, my knee joint, my ankle joint.”

What are joints?—­“Bending places.”

How many kinds of joints have you?—­“Two:  hinge joints, and ball-and-socket joints.”

What kind of a joint is the shoulder joint?—­“A ball-and-socket joint.”

Why do you call the shoulder joint a ball-and-socket joint?—­“Because at the shoulder the arm may move in any direction.”

Tell how the shoulder joint is made.—­“The upper end of the bone of the upper arm is rounded and fastened in a hollow place called a socket.”

Which of the joints of the arm and hand are hinge joints?—­“The elbow joint, the wrist joint, the thumb joint, the finger joints.”

Which of the joints of the leg and foot are hinge joints?—­“The knee joint, the ankle joint, the toe joint.”

Which of the joints of the leg is a ball-and-socket joint?—­“The hip joint.”

Where is the heel?—­“At the back part of the foot.”

Where is the ball of the foot?—­“On the sole of the foot, behind the great toe.”

Where is the hollow of the foot?—­“In the middle of the sole of the foot.”

Where is the sole of the foot?—­“On the bottom of the foot.”

Where is the instep?—­“Between the ankle joint and the toes.”

Where is the lower leg?—­“Between the knee joint and the ankle joint.”

Where is the thigh?—­“Between the hip joint and the knee joint.”

Where is the upper arm?—­“Between the shoulder joint and the elbow joint.”

Where is the fore-arm?—­“Between the elbow joint and the wrist joint.”

Where are the toe joints?—­“Between the parts of the toes.”

Where are the finger joints?—­“Between the parts of the fingers.”

Where is the ankle joint?—­“Between the lower leg and the foot.”

Where is the knee joint?—­“Between the thigh and the lower leg.”

Where is the hip joint?—­“Between the trunk and the thigh.”

Where is the wrist joint?—­“Between the fore-arm and the hand.”

Where is the elbow joint?—­“Between the upper arm and the fore-arm.”

Where is the shoulder joint?—­“Between the trunk and the upper arm.”

Where are the tips of the fingers?—­“At the ends of the fingers.”