Which of the following statements concerning epithelial tissue is false?
A. Columnar epithelial cells promote diffusion.
B. Secretory epithelial cells are usually cuboidal or columnar in shape.
C. Cuboidal epithelium is found in areas where absorption occurs.
D. Stratified epithelium is adapted for a protective role.
E. The movement of materials through epithelium is enhanced by simple squamous epithelium.
Answer: A
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Polycystic ovarian syndrome (PCOS) is a disorder in which a female produces abnormally high levels of androgens (particularly testosterone), which have various adverse effects on the female body. Which of the following describes a symptom that would be caused by high blood androgens level in a female?
A. Excessive breast development (gynecomastia) B. Rapid, excessive ovulation C. Thickened endometrium D. Abnormal growth of hair on the face and back
The omental bursa:
A) is a completely sealed-off recess of the peritoneal cavity. B) is located anterior to the stomach. C) can contain pancreatic fluid following rupture of the pancreas. D) has medial and lateral recesses. E) contains the portal vein.
Which statement is correct?
A) Using expensive hair products can enhance the mitotic growth of hair cells within the shaft. B) A hair shaft is made of varying densities and consistencies of keratin. C) All hairs have the same growth cycle until mid-life. D) Carotene is the major pigment that colors hair shafts. E) Any hair loss signifies a medical condition, which should be checked by a doctor.
Label muscle "E" on the diagram
A. orbicularis oculi B. temporalis C. trapezius D. sternocleidomastoid E. masseter