Which muscle(s) of respiration is/are innervated by the phrenic nerve?

A. Internal intercostals
B. External intercostals
C. Pectoralis major
D. Innermost intercostals
E. Diaphragm


Answer: E

Anatomy & Physiology

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Which type of descending motor pathway originates in the brainstem and governs automatic movements that help regulate muscle tone, posture and balance?

a) Indirect pathway b) Direct pathway c) Reflex arc d) Somatic arc e) Muscle spindles

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Would damage to the frontal lobe or the medulla oblongata be more likely lead to death? Describe the overall functions of these brain regions

What will be an ideal response

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Which of the following symptoms would you expect to observe in a person suffering from type I diabetes mellitus?

A) ketoacidosis B) thirst and polydipsia C) hyperglycemia D) glucosuria E) All of these answers are correct.

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Ganglion cells are stimulated optimally by ________.

A. a bar of light moving on the retina B. light striking the entire retinal surface C. a bar of light striking a spot on the retina D. light striking a spot on the retina

Anatomy & Physiology