Histology Quiz
Histology 5:
1. The digestive tract is lined with the following type of cells
a. simple squamous
b. simple cuboidal
c. simple columnar
d. stratified squamous
2. The brush border is described as a combination of:
a. glycocalyx and microvilli
b. actin and myosin
c. keratin and cilia
d. integrins and cadherins
3. This cell type lines the urinary tract, specifically the bladder
a. simple squamouss
b. pseudostratified
c. transitional
d. stratified squamous
Histology 6:
1. Epithelial-derived cancers are more common in adults due to:
a.
b.
c.
d.
Cells have been damaged over time
Digestive tract has been bombarded with toxins over time
Epithelial cells are constantly dividing
All of the above
2. On a slide, mucous cells will appear:
a. Dark
b. Clear
c. White
3. An example of a mixed gland is:
a. Sebaceous Gland
b. Salivary Cells
c. Carotid Gland
d. Goblet Cells
Histology 7:
1.
If a person is suffering from degenerative muscle disease of the heart, which type
of muscle is affected and why is it so severe.
a.
b.
c.
d.
e.
Cardiac muscle, because blood flow is limited due to intercalated discs
Smooth muscle, because it does not regenerate
Cardiac muscle, because death to the muscle tissue results in replacement of
fibrous tissue
Skeletal muscle, because its striations prevent blood flow
Cardiac muscle, because it only has one nucleus
2.
An 88 year old has come into your office with severe muscle spasms. Which of the
following areas is the site where an excess of Ach can accumulate?
a.
b.
c.
d.
e.
A
B
C
None of the above
All of the above
3.
A biopsy of smooth muscle tissue in the GI tract is taken from a 58 year old patient
with IBS (Irritable Bowel Syndrome). The following characteristics are observed under
microscopy.
a.
b.
c.
d.
e.
Round centralized nucleus
Intercalated discs
Striations
Red slow fibers
White Fast fibers
Histology 8:
1) After death, rigor mortis sets in and the muscles become tight and rigid for a period of
time. This is in response to the depletion of what necessary molecule that allows the
release of myosin/actin heads to relax the fibers.
a)ADP
b)ATP
c)Calcium
d)fibrinogen
e)acetic acid
2)When the heart looses sympathetic innervation, the cardiac cells do not cease to
function, but what type of cardiac response is effected?
a)slowing down the heart
b)speeding up the heart
c)stopping the heart
d)keeping steady heart rhythm
3)What type of junctions connect smooth muscle cells together?
a)Z -disks
b)desmosomes
c)fascia adherens
d)elastin fibers
e)dense bodies
Histology 9:
1. The two types of embryonic connective tissue are:
a. dense and loose
b. connective tissue proper and mesenchyme
c. mesenchyme and mucous connective tissue
d. mesenchyme and loose connective tissue
2. When looking blood cells in connective tissue, you identify a unique cell type, in
which you cannot distinguish a nucleus, which seems to be hidden by large, darkly
staining granules. These are most likely
a.
b.
c.
d.
basophils
neutrophils
red blood cells
plasma cells
3. You have identified adipose tissue on the slide in front of you, but now need to
distinguish brown vs. white adipose tissue. This is simple because:
a. brown adipose tissue has one, large fat droplet that covers most of the cell's interior,
while white adipose tissue contains many smaller fat droplets in the cell's cytoplasm
b. brown adipose tissue has multiple smaller fat droplets in the cell's cytoplasm, while
white adipose tissue has one larger fat droplet that covers most of the cell's interior
c. brown adipose tissue cells have peripherally located, flattened nuclei
d. white adipose tissue appears to have more brown pigmentation and vascularization
and characteristically numerous mitochondria
Histology 10:
1. Identify the type of cartilage seen in the picture:
a.
b.
c.
d.
Fibrocartilage
Elastic Cartilage
Hylain cartilage
Collagenous Cartilage
2. Identify the type of cartilage seen in the picture:
a.
b.
c.
d.
Fibrocartilage
Elastic Cartilage
Hylain cartilage
Collagenous Cartilage
3. Which of the following is not true of cartilage?
a. Vascular
b. Found in areas of support
c. Arise from mesenchymal cells
d. Very limited repair
Histology 11:
1.What type of bone cell secretes collagen and ground substances that form the initial unmineralized
bone, the osteoid?
a. Osteoclasts
b. Osteoprogenitor cells
c. Osteoblasts
d. Osteocytes
2. What hormone increases Osteoclast activity? What hormone decreases it?
a. Parathyroid, Calcitonin
b. Calcitonin, Parathyroid
c. Epinephrin, Calcitonin
d. Parathyroid, Norepinephrin
3. Which type of bone cell is capable of forming osteoblasts, chondroblasts, adipocytes, and fibroblasts?
a. Osteoprogenitor cells
b. Osteocytes
c. Osteoblasts
d.Osteoclasts
Histology 12:
1.
A patient presents with a history of Multiple Sclerosis, a condition affecting the
myelin sheath surrounding the axon of a neuron. What cells are responsible for
myelinating this section of the cell in the CNS?
a)
Schwann Cells
b)
Purkinje fibers
c)
Satellite Cells
d)
Microglial Cells
e)
Oligodendrocytes
2.
Please match the following definition to the correct term:
a)
The envelope around individual nerve fibers
b)
Individual cells are arranged in bundles, envelope surrounding these bundles
c)
The envelope connecting these various bundles
1.
Epineurium
2.
Endoneurium
3.
Perineurium
3. The fact that the neuronal cell body has a large, lightly staining nucleus and darkly
staining cytoplasm implies that:
a) The neuron is a cell stuck in the resting phase, with no DNA expression and no
protein synthesis occurring
b)
The neuron has no ability to regenerate
c) The neuron is a highly active cell, with actively expressing DNA and active protein
synthesis
d)
None of the above
Histology 13:
1.
a.
Hematocrit is
delivery of regulatory substances to and from the tisues
b.
c.
d.
percentage of volume of cellular elements vs. total volume
percentage of erythrocytes divided by granulocytes
Responsible of the eosinophilic staining of the erythrocyte
Match the percentages with the respective blood cells:
a. neutrophils
b. eosinophils
c. basophils
d. lymphocytes
e. monocytes
2.
3.
4.
5.
6.
2-5%
0.3%
8%
25-30%
50-70%
Histology 14:
1) You are observing a histological specimen that has a distinguishing characteristic of
crypts between lymphatic nodules. What type of lymphatic tissue does this most likely
represent?
a.
b.
c.
d.
e.
Tonsils
Lymph nodes
Thymus
Spleen
Bone marrow
2) Lymph nodes are common sites of metastases of cancer. Which of the following
structures is not part of the hilum of a lymph node?
a.
b.
c.
d.
e.
Arteries
Veins
Nerves
Afferent lymph vessels
Efferent lymph vessels
3) The thymus is a lymphatic organ that is fully functional at birth but degenerates and
is replaced by adipose tissue at puberty. When active, it has a capsule, cortex, and
medulla. Which of the following epithelioreticular cell types are responsible for forming
a barrier between the cortex and medulla of the thymus?
a. Types I and II
b. Types II and III
c. Types III and IV
d. Types IV and V
e. Types V and VI
Answers
Histology 5:
1. C
2. A
3. C
Histology 6:
1. D
2. C
3. B
Histology 7:
1. C
2. A
3. A
Histology 8:
1. B
2. B
3. E
Histology 9:
1. C
2. A
3. B
Histology 10:
1. A
2. B
3. A
Histology 11:
1. C
2. A
3. A
Histology 12:
1)
E
2)
A-2, B-3, C-1
3)
C
Histology 13:
1.
2.
3.
4.
5.
6.
b
b (eosinophils)
c (basophils)
e (monocytes)
d (lymphocytes)
a (neutrophils)
Histology 14:
1. a
2. d
3. c