Download m5zn_cca357279231d9d

Jazan University
Faculty of Medicin
Second year, Quize I on MMS, 23-12-1427 (13-1-2007)
Select one correct answer for each of the following questions
and mark your answer in the computer answer sheet.
1. Which of the following is a glycosaminoglycan?
a)
b)
c)
d)
e)
Chondroitin sulfate.
Creatine phosphate
Collagen
Fibronectin
Glucuronic acid
2. Which one of the following substances is found in higher
concentration in the intracellular fluid than in the extracellular fluid
a) Sodium.
b) Oxygen.
c) Calcium.
d) Potassium.
e) Glucose.
3. All the following statements are true about sodium-potassium pump
EXCEPT
a) It is an active method of transport across cell membrane.
b) It is responsible for maintaining the sodium and potassium
concentration difference across the cell membrane.
c) It is responsible for establishing a negative electrical voltage inside
the cell.
d) It causes efflux of 2 sodium ions and influx of 3 potassium ions.
e) It transports ions by the effect of ATPase.
4) In skeletal muscle neuromuscular junctions
a) curare increases the transmission of action potential in the
postjunctional membrane.
b) motor nerve terminals have vesicles containing acetylcholine.
c) there is little acetylcholinesterase.
d) transmission is facilitated by botulinum toxin.
e) acetylcholine is released by osmotic pressure into the synaptic cleft.
1
5. The resting membrane potential of a nerve is primarily dependent on
the concentration gradient of
a) potassium.
b) sodium.
c) calcium.
d) chloride.
e) bicarbonate.
6. Coxa valgus means:
a) Abduction deformity of the hip joint
b) Adduction deformity of the hip joint
c) Abduction deformity of the knee joint
d) Adduction deformity of the knee joint
e) Abduction deformity of the elbow joint
7. Which of the following is characteristic for red muscle fibers?
a) It has less vascularity.
b) It contains numerous mitochondria.
c) Its myoglobin contents are poor.
d) It has large diameter.
e) It contracts fast but easily fatigued.
8. Chromatolysis in the nerve cell body means which of the following?
a) Nucleus becomes smaller.
b) Dissolution of mitochondria.
c) Golgi apparatus fragmentation.
d) Nissl’s granules disappeared
e) The perikaryon shrinks.
9. The axillary groups of lymph nodes include all the following EXCEPT:
a) Apical
b) Lateral
c) Medial
d) Posterior
e) Anterior
10. The root value of the axillary nerve is:
a) C5 & C6
b) C6 & C7
c) C7 & C8
d) C8 & T1
e) None of the above
2
11. The following is a branch from the upper trunk of brachial plexus:
a) Long thoracic
b) Dorsal scapular
c) Suprascapular
d) Lateral pectoral
e) Medial pectoral
12. Branches of the axillary artery include all of the following arteries
EXCEPT:
a) Thoracoacromial
b) Lateral thoracic
c) subscapular
d) Superior thoracic
e) Suprascapular
13. All the following muscles share in the formation of the posterior wall
of axilla EXCEPT:
a) Pectoralis major
b) Latissimus dorsi
c) Subscapularis
d) Teres major
14. All of the following are contained in the clavipectorial fascia
EXCEPT:
a) Lateral pectoral nerve
b) Thoracoacromial artery
c) Cephalic vein
d) Long thoracic nerve
e) Infraclavicular lymph nodes
15. Action of the pectoralis major muscle includes:
a) Abduction of arm
b) Extension of arm
c) Medial rotation of arm
d) Protraction of Shoulder
e) None of the above
3