From the Second Through Eighth Weeks of Pregnancy,what Is the Medical

question 52

Multiple Choice

From the second through eighth weeks of pregnancy,what is the medical term for the developing human? 

• A) blastocyst 
• B) embryo 
• C) fetus 
• D) zygote

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Definitions:

Smile

A facial expression formed by flexing the muscles at the sides of the mouth, often expressing happiness or pleasure.

Light Pupillary Reflex

The light pupillary reflex is the involuntary constriction of the pupil in response to light exposure, helping to protect the retina from excessive light damage.

Constriction

Constriction refers to the narrowing of a passage or vessel, often as a response to nerve signaling or chemical stimuli.

Iris

The colored part of the eye that controls the size of the pupil and, consequently, the amount of light that enters the eye.