Birds 4

Question 1

What structure surrounding each testis is very thin because they don’t need much protection in the body cavity?

Answer 1

tunica albuginea

Question 2

Where do the ductus deferens empty?

Answer 2

papillae of urodeum of cloaca

Question 3

(T/F) The male bird has accessory genital glands.

Answer 3

False

Question 4

(T/F) Most birds don’t have a penis.

Answer 4

True

Question 5

What type of bird has a short phallus which helps direct semen into the cloaca?

Answer 5

waterfowl

Question 6

How many divisions of the kidney in the bird? List them.

Answer 6

3
cranial, middle, caudal divisions

Question 7

Clinical significance of renal portal system in birds.

Answer 7

give injections in pectoral Mm so toxic drugs do not go directly to kidneys

Question 8

The ________ passes right through the kidneys.

Answer 8

lumbosacral plexus

Question 9

Since the lumbosacral plexus passes right through the kidneys, when a bird is lame it can indicate what disease?

Answer 9

Merrick’s disease

Question 10

Why is waste from the bird white?

Answer 10

uric acid from urine on the surface

Question 11

(T/F) Birds do not have a urinary bladder.

Answer 11

True

Question 12

What is a typical heart rate in the bird?

Answer 12

300 BPM

Question 13

Where is the thyroid gland located in the bird?

Answer 13

along common carotid A

Question 14

Aorta in the bird branches to the (left/right).

Answer 14

right

Question 15

What vessel is prominent in birds and used for blood draws?

Answer 15

brachial V

Question 16

List the 3 parts of the cloaca.

Answer 16

1. coprodeum
2. urodeum
3. proctodeum

Question 17

The proctodeum of the cloaca is also called the _______.

Answer 17

vent

Question 18

The spleen in birds is on the (left/right) side and located between what two structures?

Answer 18

right
proventriculus & ventriculus

Question 19

(T/F) The cloacal bursa increases in size with age.

Answer 19

False - opposite

Question 20

(T/F) Birds have copious amounts of lymph nodes.

Answer 20

False - none (except waterfowl 1-2)

Question 21

(T/F) The parafollicular cells of the thyroid in the bird produce calcitonin.

Answer 21

False - NO parafollicular cells

Question 22

In addition to the thyroid and parathyroid glands, the bird has _________ glands.

Answer 22

ultimobranchial

Question 23

What is produced in the ultimobranchial glands of the bird?

Answer 23

C cells

Question 24

(T/F) The ostrich has the largest retinal blood vessels of all birds.

Answer 24

False - no retinal blood vessels in any birds

Question 25

Caudal to the limbus, the distinct white region of the sclera filled with flat bones are called _________.

Answer 25

scleral ossicles

Question 26

Vascular, cone-like protrusion from the optic disc in birds for light absorption.

Answer 26

pecten

Question 27

What additional structure is found in the brain of the bird?

Answer 27

optic lobes

Question 28

Optic lobes of the bird are the equivalent of _________ in mammals.

Answer 28

rostral colliculi

Question 29

In the spinal cord of the bird, what collection of cells is on the lumbosacral intumescence?

Answer 29

gelatinous body