Muller cells of the eye function to:

a. Absorb stray intraocular light rays via intracellular accumulations of melanin
b. Line the interior surface of the cornea
c. Nourish and support neurons within the retina
d. Phagocytize degraded membranous disks shed from rod cells
e. Secrete aqueous humor


ANS: C
Muller cells are glial elements of the retina that supply retinal neurons with glucose and other nu-trients.

Anatomy & Physiology

You might also like to view...

Axons of the lower motor neurons of the anterior corticospinal tracts innervate

A. muscles of the lower digestive tract. B. skeletal muscles that control skilled movements in the limbs. C. muscles of the respiratory system. D. skeletal muscles of the upper back and neck. E. axial skeletal muscle.

Anatomy & Physiology

The hydrolysis of ATP causes myosin to immediately

A) swivel, moving the actin molecule. B) bind more tightly to the actin (rigor). C) rotate into a position (cocked) to bind to actin. D) release from the actin. E) release of ADP.

Anatomy & Physiology

The ischemic phase of the uterine cycle is brought on by vascular spasms, which in turn are a response to what?

A. Ovulation B. Menstruation C. Rising LH level D. Falling progesterone level E. Rising progesterone level

Anatomy & Physiology

The anterior muscle that inserts widely on the periosteum of the mandible and the skin of the cheek is the

A) temporalis. B) masseter. C) lateral pterygoid. D) medial pterygoid. E) platysma.

Anatomy & Physiology