Trachea, bronchi, alveoli.
A) Respiratory
B) Endocrine
C) Digestive
D) Cardiovascular
E) Urinary
A) Respiratory
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The pituitary hormone that stimulates milk production by the mammary glands is
A) FSH. B) prolactin. C) growth hormone. D) ACTH. E) TSH.
Select the incorrect statement about cardiac muscle cells
a. all of them contract in the heart or none of them contract. b. they are capable of graded strength of contraction. c. they are produced constantly after infancy. d. they have an abundance of mitochondria. e. they have an abundance of myoglobin.
Which of the following is NOT a population of pacemaker cells in the heart?
A) sinoatrial (SA) node B) papillary muscles C) Purkinje fiber system D) atrioventricular (AV) node
Effector cells that respond to acetylcholine released from postganglionic neurons have
A. somatotrophic receptors. B. muscarinic receptors. C. adrenergic receptors. D. nicotinic receptors. E. macrotinic receptors.