Basic Medical Histology (GMS6630) Unit 2 - Multiple Choice Exam | Questions And
Answers Latest {2024- 2025} A+ Graded | 100% Verified
In which of the following regions do processes of osteocytes contact and form gap junctions with each
other? - Canaliculus
Macrophages are cells that
endocytose lipids
are derived from lymphocytes
are derived from monocytes
synthesize and release interferon-y (IFN-y)
phagocytose dust cells - Are derived from monocytes
The extrafusal fibers of a muscle spindle receive their nerve supply from which of the following - Motor
neurons
Each myosin II molecule of the heavy chain can be divided into smaller constituents, one of which binds
ATP. Which is that constituents?
a. Light meromyosin
b. S1 subfragment
c. S2 subfragment
d. Papain
e. Trypsin - S1 sub fragment
A 43-year-old patient who had an infection with Campylobacter jejuni 2 weeks earlier presents with
lower back pain that progressed to muscle weakness and lack of sensation, first in the lower then in the
upper extremities what should be physician suspect?
Huntington chorea
Parkinson disease
multiple sclerosis
,spinal muscular atrophy
Guillain-Barré syndrome - Guillain-Barré syndrome
A patient presents with muscular rigidity, constant tremor, saw movement (bradykinesia), difficult
voluntary movements, and rigid, mask like features. Which neurotransmitter is lacking in this patient's
brain? - Dopamine (Parkinson's disease)
Which of the following is true of elastic cartilage?
Is the primary skeletal tissue in the fetus
Has no identifiable perichondrium
Is found in the annulus fibrosus of intervertebral disks
Is the most widely distributed cartilage type in the body
The collagen in its matrix is mainly type II - The collagen in its matrix is mainly type II
Which of the following is true of fibrocartilage?
Contains large numbers of elastic fibers
Is found in the epiphyses of the long bones in young children
Is structurally intermediate between dense connective tissue and cartilage
The collagen in its matrix is mainly type II
Is the predominant cartilage of the external ear (auricle) - It is structurally intermediate between dense
connective tissue and cartilage.
Which of the following is true endosteum?
Is composed of two layers: osteogenic and fibrous
Is continuous with joint capsule
Is attached to the surface of bone by Sharpey's fibers
Lines the marrow cavity
Contains mature osteocytes - Lines the marrow cavity.
Which of the following is true of Haversian canals, but false regarding Volkmann's canals?
, Are surrounded by concentric bony lamellae
Carry nerve vessels
Are found in compact bone
May be found in the diaphyses of adult long bones
Are lined by periosteum - Are surrounded by concentric bony lamellae.
Which of the following cell types is capable of uncoupling oxidative phosphorylation and producing
heat?
Chondrocytes
Fibroblasts
Mesenchymal Cells
Multilocular adipocytes
Unilocular adipocytes - Multilocular adipocytes.
Which of the following is the predominant protein in the fibers of bone matrix?
Type-I collagen
Type-II collagen
Type-IV collagen
Type-V collagen - Type I collagen
Which of the following statements is correct concerning elastic cartilage?
is a vascular connective tissue
has no perichondrium
increases its size by appositional growth
has matrix vesicles in its matrix
has type III collagen in its matrix - Increases its size by appositional growth
The enzyme carbonic anhydrase is present in which of the following cells?
osteoprogenitor cells
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