The pre-embryonic structure created by cleavage is a solid ball of cells called a

A. zygote.
B. trophoblast.
C. blastocyst.
D. morula.


Answer: D

Anatomy & Physiology

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The perichondrium is a layer of dense irregular connective tissue surrounding __________.

A. a bone B. most cartilage C. a blood vessel D. the brain and spinal cord E. the pericardial cavity

Anatomy & Physiology

Stimulation of the ________ within the hypothalamus produces the sensation of hunger

A) satiety center B) feeding center C) thirst center D) limbic system E) hormone center

Anatomy & Physiology

In a sexually mature individual, pulses of GnRH are secreted once a day

Indicate whether the statement is true or false

Anatomy & Physiology

The most complicated spinal reflexes are called

A) collateral reflex arcs. B) ipsilateral reflex arcs. C) intersegmental reflex arcs. D) dermatomes. E) spinal plexuses.

Anatomy & Physiology