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Dhsc 109: Human Physiology Ii Question Paper
Dhsc 109: Human Physiology Ii
Course:Clinical Medicine & Surgery
Institution: Kenya Methodist University question papers
Exam Year:2011
KENYA METHODIST UNIVERSITY
END OF 3''RD ''TRIMESTER 2011 EXAMINATIONS
SCHOOL : MEDICINE & HEALTH SCIENCES
DEPARTMENT : CLINICAL MEDICINE & SURGERY
UNIT CODE : DCMC 109
UNIT TITLE : HUMAN PHYSIOLOGY II
TIME : 3 HOURS
SECTION ONE : (MCQS) TRUE OR FALSE WHERE APPROPRIATE
Question One
Factors that influence change is glomecular filtration include:
Change in renal blood flow
Change in capillary pennability
Change in hydrostatic cosmotic pressures
Change in concentration of plasma proteins
Change in filtration fraction
Question Two
Substances used to measure GF12 include;
Insulin
CrEDTA
P-Aminohippuric
Urine
Blood
Question Three
Normal GFR:
Is 125 ml 1min
Values in women are 10% lower than in men
Urine volume is 1l/day
Kidneys filter in a day an amount of fluid equal to r times the total body water.
None of the above.
Question Four
Write correct response to the following statements:
Penueability of glomerular capillaries is about 50 times that of skeletal muscle capillaries.
Neutral substances with effective molecular diameters less than 4mm are freely filtered.
GFR is measured by measuring the excretion and plasma level of a substance that is freely filtered through glomerulius
None pinephine is a vasoconstrictor
All above statements are false.
Question Five
About distal convoluted tubules
About 5mmm long
Cells are columnar cells with numberous micrilli
Cocilesce to form collecting tubules
Responsible for naCl reabsorption
Has a receptor for Pamathyroid Hormone.
Question Six
About colleting tubules:
Are 20mm long
Pars through renal cortex and medullar and empty into the pelus
Epithelium is made up of principal cells and intercalated cells
Above are true
None of the above is true
Question Seven
Principal structures of the eye include:
Sclera
Choroid
Lens
Eyelashes
Eyebrow
Question Eight
The following nerves are important invision:
OpNc nerve
Difactory nerve
Abuceus nerve
Trigeminal nerve
Facial nerve
Question Nine
Space between the lens and retina is filled with fluid called:
Saliva
Tears
Vitreonshunor
Acqueous humaor
None of the above
Question Ten
About Retina of the eye:
Extends anteriorly almost to cilliary body
Is organized into 10 layers and contains rods and cones
Receptor layer rests on pigment epithelium
There are no visual receptors at blind spot
Above are true
Question Eleven
Retina has four types of neurons namely:
Bipolar cells
Ganglion cells
Horizontal cells
Anacrine cells
Rods and cones
Question Twelve
Which of the following is not synthesized in postganlionic sympathetic neuron?
L-Dopa
Dopanine
Norepinephine
Histamine
Acetylcholine
Question Thirteen
Fast inhibitory postsynaptic poteuticles (IPSPS)
Are a consequence of presynaptic inhibition
Interact with other fast and slow potentials to move membrane potentials
Can be produced by an incrase in Na+ conductance
Can be produced by Ca2+? conductance
Occur in skeletal muscle
Question Fourteen
The following are neurotransmitters:
Ganglions
Oxygen
Dopanine
Histamine
Epinephine
Question Fifteen
Which of the following plasma proteins is not synthesized in the liver?
(a) Angiotensinogen
(b) IGF-1
(c) Angiotensin II convencing enzyme
(d) ?2 macroglobulins
(e) Fibrinogen
Question Sixteen
Cells responsible for innate immunity are activated most commonly by:
Glucocorticoids
Pollen
Carbohydrate sequence in bacterial cells walls
Eosinophils
Cytoplasmic protein of bacteria
Question Seventeen
Lymphocytes:
(a) All originate from the bone marrow after birth
(b) Are unaffected by hormones
(c) Convert to monocytes in response to antigens
(d) Interact with eusinophils to produce platelets
(e) Are part of body’s defense against cancer
Question Eighteen
Action potential of skeletal muscle:
Has a prolonged plateau phase
Spreads inwards to all part of the muscle via t-tubles
Causes immediate uptake of Ca24 into lateral sacs of sacs of sacroplasmic reticulum.
Longer than action potential of cardiac muscle.
Is not essential for contraction.
Question Nineteen
Which of the following has the slowest conduction velocity?
A ? fibers
Aß fibers
Ax fibers
C fibers
Question Twenty
Testosterone is produced mainly by:
leydig cells
Sertoli cells
Seniniferous tubules
Epididymis
Vas deferens
SECTION II (SAQ) (50 MARKS)
Question One
Describe the renal tubule (5 Marks)
Question Two
List factors that indluence GFR (5 Marks)
Question Three
State the urinary and plasma concentration of glucose, Na+, urea and creatimine. (5 Marks)
Question Four
Explain the role of immune system (5 Marks)
Question Five
Mention the basis of genetic sex determination. (5 Marks)
Question Six
List 5 non transmitters in nerve conduction (5 Marks)
Question Seven
Describe structure of nerve (5 Marks)
Question Eight
Illustrate arrangement of neurons producing presynaptic and postcynaptinc inhibition.
Question Nine
List the main reproductive hormones (5 Marks)
Question Ten
Illustrate the main auditory pathyways (5 Marks)
SECTION III (LAQ) 50 MARKS
Question One
Discuss functional anatomy of the skin. (25 Marks)
Question Two
Describe various parts of the eye and give functions of each. (25 Marks)
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