ZOOLOGY 441 HISTOLOGY
NAME:____________________________________________
LECTURE FINAL, 8 MAY 1996

I. Define or Describe the following terms. For histological structures, include
statements about the location, structure, function, and histology (staining properties,
etc.). (4 pts. each, 20 pts. total)

1. Olfactory Epithelium

2. Corpus Luteum

3. Spermatogonia

4. Oxyphil Cells

5. Renal Corpuscle

II. Fill-in. Some answers may require a short phrase. (2 pts. per blank, 50 pts. total)

1.______________________ Cross-sectional layer of blood vessel containing
smooth muscle

2.______________________ Portion of kidney containing loop of Henle and
collecting ducts

3.______________________ Cell type in testes secreting testosterone

4.______________________ Calcitonin-secreting cells of mammal thyroid

5.______________________ CT fiber type comprising vocal ligament

6.______________________ An ovarian follicle contains the oocyte and the
___________.

7.______________________ Capillary type with pores in endothelial cell
cytoplasm

8.______________________ Capillary type with wide gaps between endothelial
cells

9.______________________ Mechanism of blood flow relative to air flow in bird
lung

10._____________________ Thin-walled region of uterine tube with highly
folded mucosal epithelium - makes up about 2/3 of total length

11._____________________ One example of male genital duct lined by
pseudostratified columnar epithelium with stereocilia

12._____________________ Genital gland secreting serous fluid with proteolytic
enzymes serving to liquefy semen

13._____________________ Gland classification applying to mammary gland
(simple, compound, etc.)

14._____________________ Cell layer lining chorionic villus that is maintained
throughout embryonic development

15._____________________ Structure derived from ventral portion of 5th
pharyngeal pouch in all vertebrates except mammals

16._____________________ Substance filling antrum

17._____________________ Specialized region of nephron epithelial cells at
junction of ascending loop of Henle and distal convoluted tubule - senses changes in
sodium concentration in plasma

18._____________________ Pale region in lymph nodule where lymphocytes are
actively dividing

II. Fill-in (cont.)

19._____________________ Shelves of bone in nasal cavity serving to decrease
respiratory water loss

20._____________________ Cell in alveolar wall involved in gas exchange

21._____________________ Cell in alveolar wall secreting surfactant

22._____________________ Basophilic accumulations of secretory material in
neurohypophysis

23._____________________ Reason why epithelial cells lining vagina appear
vacuolated

24._____________________ Region of nephron with brush border

25._____________________ Cell forming endothelial lining of capillaries in gill
lamellae

III. Multiple Choice. Choose the best answer. (2 pts. each, 10 pts. total)

1. Which of the following shows a reversed position of adenohypophysis and
neurohypophysis (i.e., neurohypophysis in front)?

a) birds, b) reptiles, c) marsupial, d) teleost, e) all show a reversed position

2. Transitional epithelium does not line the _____.

a) upper urethra, b) urinary bladder, c) ureter, d) collecting ducts, e) all are lined by
transitional epithelium

3. The _______ is (are) found only in mammals.

a) thymus, b) spleen, c) parathyroids, d) lymph nodes, e) urinary bladder

4. Which of the following respiratory tubes is lined by simple columnar epithelium?

a) Primary bronchus, b) Secondary bronchus, c) Tertiary bronchus, d) Bronchiole, e) all
are lined by simple columnar

5. Which of the following is not a site where red bone marrow is found?

a) skull, b) sternum, c) pelvis, d) ribs, e) proximal humerus

IV. Essay. (10 pts. each, 20 pts. total)

1. Answer one of the following.
a) Describe the structure (i.e., divisions, cell types, vascular supply, etc.) and secretions
of the adenohypophysis and the neurohypophysis.
b) Describe the structure and histology of the adrenal cortex. Be sure to include the
secretions from each region in your discussion.

2. Describe the general structure and the proposed circulation
patterns of the spleen.