The axial skeleton is composed of the

A. skull and vertebral column

B. limbs and girdles

C. atlas and axis.

D. radius and ulna

The inorganic components of bone consist of

A. magnesium, sodium and calcium

B. magnesium, phosphorus and calcium

C. sodium, phosphorus and calcium,

D. potassium, magnesium and calcium

A pulse is best described as

A. contraction of arteries to let out blood.

B. contraction of veins to allow blood into them

C. dilation of arteries to accommodate blood rushing through.

D. pumping action of the heart to move blood round the body.

The following characteristics are associated with the mammalian lungs except

A. large surface area

B. expandable lungs

C. moist surface

D. highly vascularized

The excretory system in mammals consists of the following parts except

A. two kidneys

B. two ureters

C. two bladders

D. one urethra

The organ that receives reduced flow of blood during vigorous exercise is the

A. brain

B. heart

C. lung

D. limb

The ear pinna is strengthened by

A. blood pressure.

B. cartilage

C. bone

D. turgor pressure

The relationship between the retina and the brain is similar to that between the

A. cochlea and the auditory nerve

B. cochlea and the brain.

C. cochlea and the semi-circular canals

D. eardrum and the brain

Which of the following statements about the development of the foetus is not correct?

A. The circulatory system of the foetus is directly connected to the maternal blood vessels

B. The foetus depends on the mothers blood for its food and oxygen

C. The foetus is surrounded by a water sac

D. Food and oxygen are carried across the placenta to the embryo’s blood

The parts that supply food and water to the developing embryo are labelled

A. I and II

B. III and V.

C. V and VI

D. I and III