Which group of muscles flexes and rotates the neck?

A) the scalenes
B) the iliocostalis
C) the spinalis
D) the splenius


A) the scalenes

Anatomy & Physiology

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When outdoor temperatures reached a ten-year high, the mountain hiker appeared flushed. Which action made her blood vessels get larger in diameter, allowing her to lose heat to the environment?

A. Vasomotor B. Vasodilation C. Vasoconstriction D. Vasopressor

Anatomy & Physiology

Eyebrow hairs are always shorter than hairs on your head because ________

A) eyebrow follicles are only active for a few months B) hormones in the eyebrow follicle switch the growth off after it has reached a predetermined length C) they grow much slower D) the vascular supply of the eyebrow follicle is one-tenth that of the head hair follicle

Anatomy & Physiology

In a trained athlete, the maximal oxygen consumption is increased due to:

A. an increase in the number of mitochondria B. more efficient blood delivery to muscle C. a reduction in the minute ventilation D. a higher resting heart rate

Anatomy & Physiology

Gametes are exact copies of body cells, but with only half the number of chromosomes.

Answer the following statement true (T) or false (F)

Anatomy & Physiology