This chemical produced in the retina is important for the light-dark cycle of circadian rhythms:

a. melatonin
b. melanocortin
c. melanopsin
d. melanin
e. none of the above


C

Anatomy & Physiology

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The testes are the male gametes.

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

Anatomy & Physiology

Which layer of the uterine wall is sloughed off during menstruation?

A. Perimetrium B. Epimetrium C. Myometrium D. Basal layer of endometrium E. Functional layer of endometrium

Anatomy & Physiology

This figure shows an anterior view of the spinal cord and meninges. What structure does number 1 indicate?

A. Posterior root B. Posterior root ganglion C. Anterior root ganglion D. Anterior root E. Gray commissure

Anatomy & Physiology

The first step in oogenesis is:

A) a corpus luteum becomes a corpus albicans. B) a primary oocyte divides to form a secondary oocyte and a first polar body. C) a follicle becomes a corpus luteum. D) a secondary oocyte divides to form a polar body and an egg cell.

Anatomy & Physiology