Fixed macrophages in the _______ remove worn out RBCs from circulation.

A) liver and spleen
B) lung and kidney
C) pancreas and thymus
D) spleen and kidney


Ans: A) liver and spleen

Anatomy & Physiology

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Inherited traits controlled by two or more genes are called:

A) incomplete dominance. B) codominance. C) polygenic inheritance. D) multiple alleles.

Anatomy & Physiology

The closure of a precapillary sphincter prevents blood flow to tissues from:

A) venules. B) muscular arteries. C) elastic arteries. D) arterioles.

Anatomy & Physiology

During hyperventilation, arterial levels decrease because CO2 is blown off more rapidly than it is being produced in the tissues

Indicate whether the statement is true or false

Anatomy & Physiology

Any situation that upsets homeostasis and threatens one's physical or emotional well-being is called ________

A) hirsuitism B) pathology C) stress D) disease E) hyperthyroidism

Anatomy & Physiology