During implantation, the trophoblast divides into a superficial layer called the ________, which is composed of a multinucleate mass of cytoplasm.

A. embryoblast
B. chorion
C. cytotrophoblast
D. syncytiotrophoblast
E. amnion


Answer: D

Anatomy & Physiology

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The groove separating the greater and lesser tubercles of the humerus is the ____________________ groove.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

The region that contains adipose tissue is indicated by letter __________.

The hair follicle is indicated by letter __________. 

The structure that is responsible for whorled ridges on the epidermal surfaces is indicated by letter __________. 

The structure that pulls the hair follicle into an upright position is indicated by letter __________. 

The gland that produces a mixture of oily substances and fragmented cells is indicated by label __________. 

The gland that produces sweat is indicated by label __________. 

Anatomy & Physiology

The time in which ovulation and menstruation cease is called

A) oogenesis. B) menarche. C) andropause. D) menopause. E) climacteric.

Anatomy & Physiology

The appearance of the external genitalia determines an individual's

A. genotypic sex. B. phenotypic sex. C. gender identity. D. genetic sex.

Anatomy & Physiology