Final Exam - Practice Final from TAs

Question 1

What type of cell is present here?

Answer 1

Mesenchymal cells

Question 2

What organelle is the arrow pointing at and describe its activity

Answer 2

Nucleus, euchromatic

Question 3

What structure(s) is the arrow pointing at?

Answer 3

microvilli, stained dark by PAS

Question 4

What mode of secretion is shown below?

Answer 4

Apocrine

Apocrine secretion typically has a bulging apex, resulting in some cytoplasmic loss during secretion

Question 5

Identify the epidermal layer indicated by the arrow

Answer 5

Stratum Granulosum

Question 6

Which receptor is responsible for deep pressure?

Answer 6

Pacinian corpscule

Question 7

Identify the structure within the box.

(box…)

Answer 7

Meissner’s corpuscle

Question 8

Identify the structure

Answer 8

Ruffini corpuscle

Question 9

In muscles, what surrounds the fascicle?

Answer 9

Perimysium

Whole muscle surrounded by epimysium, muscle fiber surrounded by endomysium

Question 10

What is a sarcomere?

Answer 10

Contractile unit of myocyte

Question 11

Which of the following zones corresponds to the zone of hypertrophy?

Answer 11

B

Question 12

Which stage of the estrus cycle is this smear from?

Answer 12

Estrus

(no nuclei)

Question 13

Which cells are responsible for the blood testis barrier?

Answer 13

Sertoli cells

Question 14

Where is sperm stored?

(before ejactulation, you pervert)

Answer 14

tail of the epididymis

Question 15

List the structures that contain endolymph

Answer 15

• Cochlear duct (scala media)
• Utricle
• Saccule
• Semicircular DUCTS

_C_rab _U_mbrellas _S_ound _S_illy

Question 16

Identify the structure marked “2” and its associated hormones

Answer 16

Neurohypophysis; Oxytocin and ADH

Question 17

Identify the region of the adrenal gland that produces aldosterone

Answer 17

Zona Glomerulosa

Question 18

Where do B cells and NK cells mature?

Answer 18

Red bone marrow

Question 19

What type of lymphocyte is found in the center of this secondary nodule?

Answer 19

B-cells are found at germinal centers of secondary/active nodules

Question 20

Where are purkinje fibers found?

Answer 20

Endocardium

Question 21

Identify the type of blood vessel

Answer 21

muscular artery

(Tunica interna of muscular arteries is distinct elastic layer)

Question 22

Abnormal development of the truncus arteriosis would result in what fetal abnormality?

Answer 22

Transposition of the great vessels -> incompatible with life

Question 23

What portion of GI is depicted?

Answer 23

Ileum

(Note the peyers patches)

Question 24

Hepatocytes closer to the central vein will be exposed to what type of environment?

(oxygen rich or oxygen poor)

Answer 24

oxygen poor

Question 25

Cells from this region of the pancreas could produce which of the following?

Answer 25

insulin & glucagon

Question 26

What are the three layers of the blood urine barrier?

Answer 26

• Capillary endothelium
• Basement membrane
• podocytes

Question 27

Identify this type of tissue found in the bladder.

Answer 27

transitional epithelium

Question 28

What structure is associated with production of aqueous humor?

Answer 28

Ciliary body, specifically the outer non-pigmented cells