Comparative Anatomy B

Question 1

Which animal has a short leaf-shaped spleen?
a.Goat
b.Horse
c.Pig
d.Dog

Answer 1

Goat

Question 2

Which of the following animals lacks renal lymph nodes?
a.Goat
b.Horse
c.Pig
d.Dog

Answer 2

Dog

Question 3

Which of the following CORRECTLY describes the thymus of domestic animals?
a. chicken lacks thymus
b.dog has thymus with thoracic part only
c. cattle thymus has both thoracic and cervical parts without the intermediate part
d.horse thymus is represented by the cervical part only

Answer 3

Dog has thymus with thoracic part only

Question 4

Which lymph node of the head and neck is not normally or LEAST palpable?
a.parotid lymph node
b.mandibular lymph node
c.medial retropharyngeal lymph node
d.superficial cervical lymph node

Answer 4

Medial retropharyngeal lymph node

Question 5

Hemal nodes are most likely present in which of the following animals?
a.Dog
b.Cattle
c.Pig
d.Horse

Answer 5

Cattle

Question 6

Which of the following statements about lymph nodes is not true:
a.ruminants have a specific lymph node draining each compartment of their stomach
b.caudal mediastinal lymph nodes are missing in cats
c.horse has a palpable subiliac lymph node
d.popliteal lymph node is missing in dogs

Answer 6

Popliteal lymph node is missing in dogs

Question 7

Which lymph node can be palpated at the neck?
a.submandibular lymph node
b.parotid lymph node
c. inguinal lymph node
d.popliteal lymph node

Answer 7

Submandibular lymph node

Question 8

Which male sex accessory sex gland is missing in stallion?
a.prostate gland
b. vesicular gland
c. bulbourethral gland
d.none of the above

Answer 8

None of the above

Question 9

Which male animal has a long urethral process?
a.Stallion
b.Ram
c. Tomcat
d.Bull

Answer 9

Ram

Question 10

Which of the following statements about animal penis is incorrect:
a.rooster has a protrusible penis
b.the male dog has a vascular-type of penis
c.the stallion has a urethral process
d.tomcat has a glans penis with spines

Answer 10

Rooster has a protrusible penis

Question 11

In castrating dogs, stallions or bulls, the spermatic cord is being ligated. The following are structures present in the spermatic cord, EXCEPT:
a.seminiferous tubule
b.testicular artery
c.testicular vein
d.deferent duct

Answer 11

Seminiferous tubule

Question 12

If we trace the gonadal duct system, the spermatozoa will be able to mix with the different male accessory sex glands ONLY at which segment?
a.Epididymis
b.Vas deferens
c.Urethra
d.Seminiferous tubules

Answer 12

Urethra

Question 13

The following animals have fibroelastic-type of penis, EXCEPT:
a.Boar
b.Bull
c.Buck
d.Stallion

Answer 13

Stallion

Vascular – stallion, dog, tomcat
Fibroelastic – boar, bull, ram, buck

Question 14

In the gonadal duct system, where is the actual site of spermatozoa development?
a.Rete testis
b.Epididymis
c.Seminiferous tubules
d.Efferent duct

Answer 14

Seminiferous tubules

Question 15

The following are TRUE about the testes of stallion, EXCEPT:
a.the long axis of the testes is oriented vertically
b.the skin of the scrotum is pigmented
c.the scrotum is oily
d.few fine hairs are present

Answer 15

The long axis of the testes is oriented vertically

Question 16

Which of the following statements is INCORRECT:
a.rooster lacks epididymis
b.the scrotum of a tomcat has more hair than in a boar
c.all domestic male mammals have pampiniform plexus
d.None of the above

Answer 16

Rooster lacks epididymis

Question 17

Which of the following statements best describes the main difference between fibroelastic and vascular type penis?
a. fibroelastic penis has more erectile tissue and little connective tissue than vascular penis
b. fibroelastic penis has less erectile tissue and more connective tissue than vascular penis
c. fibroelastic penis has more erectile and connective tissue than vascular penis
d. fibroelastic penis has less erectile and connective tissue than vascular penis

Answer 17

Fibroelastic penis has more erectile tissue and little connective tissue than vascular penis

Question 18

Which male sex accessory sex gland is missing in drake?
a.Prostate gland
b.Vesicular gland
c.Bulbourethral gland
d.All of the above

Answer 18

All of the above

Question 19

Which male animal has a cherry-like bulbourethral gland?
a.boar
b.dog
c.bull
d.stallion

Answer 19

Bull

Question 20

Which of the following has a pre-scrotal sigmoid flexure?
a.Boar and bull
b.Bull only
c.Boar only
d.Neither bull nor boar

Answer 20

Boar only

Question 21

What is fleshy growth or crest on the top of the head of chicken?
a. snood
b.comb
c.caruncle
d.ear lobe

Answer 21

Comb

Question 22

Which of the following statements about feather is FALSE:
a.tail feathers have symmetrical vane
b.shaft is little or missing in down feathers
c.bristle have barbs at the base
d.flight feathers are the most numerous feathers in
the bird

Answer 22

Flight feathers are the most numerous feathers in the bird

Question 23

What is the hollow portion of the shaft of the feather?
a.rachis
b.remiges
c.calamus
d.rectrices

Answer 23

Calamus

Question 24

Which of the following has a
compound hair follicle?
a.dog
b.horse
c.cattle
d.pig

Answer 24

Dog

Question 25

What is the ring of soft horn marking the transition between the skin and the horn? a.caruncle b.epikeras c.tarsal pad d.rachis

Answer 25

Epikeras

Question 26

What is the wedge-shaped structure between the sole, bars and bulb of horse hoof? a.Frog b.Periople c.White zone d.Coronet

Answer 26

Frog

Question 27

What is the largest skin fold in the wings? a.Propatagium b.Postpatagium c.Alular patagium d.Metapatagium

Answer 27

Propatagium

Question 28

Which sebaceous gland of waterfowl is used for water-proofing their feathers? a.Uropygial gland b.Preen gland c.Oil gland d.All of the above

Answer 28

All of the above

Question 29

Which among the following female animals have the most number of teat openings? a.Cow b.Sow c.Bitch d.Mare

Answer 29

Bitch

Question 30

What is the small mass of horny material on the palmar/plantar surface of the fetlock of horse? a.Coronet b.White line c.Chestnut d.Ergot

Answer 30

Ergot

Question 31

Which of the following statements about the ovaries of domestic animals is FALSE: a.only the left ovary of hen is present b.mare has a structure for the specific location of oocyte release during ovulation c.the ovaries of cow are located close to the ventral abdominal wall d.the ovaries of the queen have a unique structure called capsular veins

Answer 31

The ovaries of the queen have a unique structure called capsular veins

Question 32

Which female animals have cervix with mucosal folds arranged longitudinally? a.bitch and queen only b.bitch and sow only c. bitch, queen and mare only d.bitch, mare and sow only

Answer 32

Bitch, queen and mare only

Question 33

Which statement about the female reproductive tract of hen is iNCORRECT? a. spermhost gland is present at the uterovaginal junction b. cervix is missing c. only the left side reaches maturity d.none of the above

Answer 33

None of the above

Question 34

Pulvini cervicales is present in the cervix of which female animals? a.Cow b.Sow c. Doe d.Ewe

Answer 34

Sow

Question 35

The ovaries of sow are described to be like grape because of its rough and nodular surface. This rough and nodular surface is actually the ____ a.Ovulation fossa b.Developing and mature follicles c. Tunica albuginea d.Corpus callosum

Answer 35

Developing and mature follicles

Question 36

Which female animal has an ovulation fossa in the ovary? a.Mare b.Sow c. Doe d.Hen

Answer 36

Mare

Question 37

Where is the correct anatomical position of the mammary gland of a cow? a.Thoracoabdominal b.Thoracoabdominoinguinal c. Inguinal d.Abdominoinguinal

Answer 37

Inguinal

Question 38

Which organ will you most likely use as a reference in locating the ovaries of bitch? a.Kidney b.Stomach c. Spleen d. Jejunum

Answer 38

Kidney

Question 39

Which female structure is responsible for the coital lock in dogs? a.Vestibular bulb b.Glands of Bartholin c. Suburethral diverticulum d.Vagina fornix

Answer 39

Vestibular bulb

Question 40

Streak canal is present in the___. a.Teat b.Teat opening c. Udder d.Milk cistern

Answer 40

Teat

Question 41

What is the longest segment of the oviduct of hen? a. Isthmus b.Magnum c. Infundibulum d.Uterus

Answer 41

Magnum

Question 42

During the passage of an ovum in the bird’s reproductive tract, in which segment does it stay for the longest period? a. Isthmus b.Magnum c. Infundibulum d.Uterus

Answer 42

Uterus

Question 43

Only the brachiocephalic trunk arises from the aortic arch of which animal/s? a.Pig, cattle and horse b.Dog only c.Cattle and horse d.Dog and pig

Answer 43

Cattle and horse

Question 44

Which of the following is the best site for blood collection in the hindlimb? a.Saphenous vein b.Femoral artery c. Jugular vein d.Cephalic vein

Answer 44

Saphenous vein

Question 45

You were asked to locate the chordae tendinae. Which of the following will you do? a. open the heart and see the right ventricle. The band connecting to the interventricular septum and wall of the right ventricle is the chordae tendinae b. find the aorta and the pulmonary trunk at the base of the heart. The band connecting the two arteries is the chordae tendinae c. incise the heart sagitally. Check the valves and see the tendinous bands connecting the cusps and papillary muscles. That is the chordae tendinae d. transversely cut the base of the heart and locate the cartilaginous structure supporting the aortic valve. The periphery of the cusps is the chordae tendinae

Answer 45

Incise the heart sagitally. Check the valves and see the tendinous bands connecting the cusps and papillary muscles. That is the chordae tendinae

Question 46

Which blood vessel is absent in goats but present in cattle? a.Facial artery b.Coronary artery c. Jugular vein d.Femoral artery

Answer 46

Facial artery

Question 47

Among the cardiac valves in pigs, which lies most cranially? a.Pulmonary valve b.Aortic valve c. Right atrioventricular valve d.Left atrioventricular valve

Answer 47

Pulmonary valve

Question 48

Irrespective of size and shape, the pig heart can be readily distinguished from the heart of other animals because: a.Only the brachiocephalic artery arises separately from the aortic arch b.Only the right subclavian artery arises separately from the aortic arch c. The left subclavian and brachiocephalic arteries arise separately from the aortic arch d.The right subclavian and brachiocephalic arteries arise separately from the aortic arch

Answer 48

The left subclavian and brachiocephalic arteries arise separately from the aortic arch

Question 49

The major blood supply to the bovine horn is via the cornual artery, which is a branch of the: a.Superficial temporal artery b. Caudal auricular artery c. Supraorbital artery d.External carotid artery

Answer 49

Superficial temporal artery

Question 50

Blood from which organ does not drain into the portal vein? a.Pancreas b.Small intestine c. Spleen d. Diaphragm

Answer 50

Diaphragm