Avian Flashcards

(106 cards)

1
Q

What is a distinctive feature that is exclusive only to birds?

A

Feathers

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2
Q

T/F: Topical alcohol can dramatically change the temperature of a bird

A

True

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3
Q

Which direction do you part the feathers for venipuncture?

A

To the side

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4
Q

T/F: Bird skin is very tough and thick

A

False. Thin and fragile - subject to bruising

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5
Q

What is preening?

A

Method of aligning barbules on the feathers together

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6
Q

How might you tell a bird is sick from observing its feathers?

A

The feathers may be ungroomed

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7
Q

What is a blood feather?

A

A growing, active feather that is highly vascularized and enervated

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8
Q

What are two things that can affect feather growth?

A

Hormones, contaminants

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9
Q

What do stress bars on a feather represent?

A

Stress during the time of development of the feather in that area. Could be nutritional or environmental etc.

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10
Q

What bones do the primary feathers attach to?

A

Carpal bones

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11
Q

What bones do the secondary feathers attach to?

A

Ulna bone

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12
Q

Besides flight, what are some functions of feathers?

A

Insulation, thermoregulation, water proofing, mating and reproduction

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13
Q

T/F: Most bone fractures in birds are closed fractures.

A

False. Open fractures - easier for surgery

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14
Q

How many attachments do birds have at their atlanto-occipital joint?

A

One. (also only one occipital condyle)

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15
Q

How many times longer is a birds neck than a mammal (on average)?

A

2.5 times

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16
Q

What is the name for the bones of thoracic region on a birds body?

A

Notarium

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17
Q

What bone is commonly broken from flying into windows?

A

Synsacrum

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18
Q

What is the prognosis for a broken synsacrum?

A

Poor

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19
Q

What is another name for the bird sternum and what is its function?

A

Keel - support respiration

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20
Q

What would a score of 3 on the keel look/feel like?

A

Slightly convex with tissue, not flat or semicircular

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21
Q

When evaluating the health of an animal via its keel, what is something you want to look for?

A

Symmetries

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22
Q

What is the bone that attaches cranially to the keel bone, and has the clavicle ventrally attached to it?

A

The coracoid bone

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23
Q

What bone is dorsally attached to the coracoid bone?

A

The scapula.

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24
Q

What is the triosseal canal and what does it do?

A

It is an opening formed by the scapula, coracoid, and humerus and it is where the supracoracoideus muscle attaches to the humerus

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25
T/F: Air sacs channel air into the bones.
True, specifically the pneumatic bones
26
What are some pneumatic bones in the bird?
Humerus, clavicle, pelvis
27
T/F: It is advised to administer fluids in the humerus
False. The humerus is pneumatic
28
Where is one vein to draw blood on the hind leg?
Medial metatarsal vein
29
What bone in the forelimb can you place an intraosseous catheter?
Ulna bone
30
What vein in the forelimb can you draw blood from?
Ulnar vein
31
What are the nostrils of the bird called?
Nares (nair-ees)
32
T/F: The bird's soft palate is caudal to the hard palate.
False, birds do not have soft palates
33
What structure connects a birds oral cavity to the respiratory system?
Choana
34
T/F: Birds have complete tracheal rings
True
35
Where would you find the trachea?
Base of the tongue, can be seen right when you open the mouth
36
Do birds have epiglottises?
No
37
Which jugular vein is bigger, right or left?
Left
38
What structure is located right at the bifurcation of the trachea?
The syrinx
39
What is another term for tertiary bronchus?
Parabronchi
40
T/F: Bird lungs are rigid and inelastic compared to mammal lungs
True
41
How many air sacs to birds have in total?
9. 4 pairs and 1 intraclavicular
42
The flow of air through a bird lung is undirectional or bidirectional?
Unidirectional
43
Do birds have diaphragms?
No
44
What moves to generate the mechanical force of inspiration and expiration?
The sternum and ribs
45
During inspiration, where does the air go first, before hitting the lungs?
The posterior air sacs
46
What do you want to avoid blocking with a gas mask for a bird?
It's nares
47
What are the most important pre-anesthetic considerations for birds?
Fasting and analgesics
48
What are the steps of isoflurane levels when anesthetizing a bird through mask induction?
Start at 5% iso then gradually reduce the concentration
49
T/F: Do not inflate the cuff on the ETT
True
50
What can happen is the ETT is too tight for the birds trachea?
Pressure necrosis
51
What may happen if you place your ETT too far into the trachea?
Vagal stimulation
52
How can you secure an ETT once placed?
Tape it to the lower mandible
53
How many times do you want to apply IPPV to an anesthetized bird?
2-4 times per minute
54
T/F: Even if the bird is breathing normally during anesthesia, you want to perform IPPV
True
55
What position should the bird be when recovering from anesthesia?
Upright
56
What medication can prolong the recovery of birds and is contraindicated?
Butorphanol
57
What air sac do you usually approach for an air sac canulation?
The posterior air sacs
58
What sense do birds rely on the most?
Their sight
59
What are some shapes of the eye that birds have?
Flat, globular, tubular
60
Which eyelid, upper or lower, has most mobility?
Lower
61
T/F: Birds do not have a 3rd eyelid
False
62
What does it mean if the 3rd eyelid reflex is absent during anesthesia and what should you do?
It means the bird is too deep. Turn down the anesthetic!
63
Where does the nasolacrimal duct empty out to?
Nasal cavity dorsal to the choanal cleft
64
T/F: Birds have bones in their eyes
True. Scleral ossicles
65
What type of muscles are present in the bird eye?
Skeletal
66
Does atropine work as a mydriatic for birds?
No, since the muscles are skeletal
67
Since the bird retina is avascular, what provides nutrients to the tissue?
Pecten
68
What is the area in the birds retina that has the greatest visual activity?
Fovea
69
T/F: Birds do not have indirect PLRs
True
70
What do slit lamps check for?
Inflammatory cells in the anterior chamber
71
What is the name for neutrophils in birds?
Heterophils
72
T/F: The way to count RBCs is to use an automatic cell counter
False, use a hemocytometer
73
How do you count WBCs on a slide?
40x objective, count # WBCs in 10 fields, find average, x 200 = WBC/uL
74
What test do you run to check for liver values?
Bile acids
75
T/F: Papillae in the upper inside beak is a sign of hypervitaminosis A
False. Papillae are normal, but lack of means a issue with vitamin A
76
What side is the crop?
RIGHT SIDE!
77
What is the outside of the cloaca called?
The vent
78
Which lymph nodes can you palpate on a bird?
None, you can't palpate lymph nodes on birds
79
Why do you want to avoid injecting meds into the lower limbs?
The renal portal system will uptake those drugs and filter them. Not good
80
What side is the ovary on?
Left. Right Regresses
81
What % of body weight is the total blood volume of a bird?
10%
82
What % of blood volume can be safely sampled from a bird?
10%
83
T/F: 1 mL/100 is the rule to use for blood draw in birds
True
84
What should normal bird feces look like?
Brown fecal portion with white urates, also a transparent urine portion (aqeous)
85
You see a bird ballooning from its body, is this a puncture wound with a air sac hernia?
No, air sac is popped and air ballooned the skin
86
What is the most common cause of a ruptured air sac?
Cats
87
What is the most commonly associated bacteria with a ruptured air sac?
Pasturella
88
Why is a bruise on a cat green?
The biliverdin (green) does not get converted to bilirubin
89
How can you tell right from left on a radiograph?
The stomach is always on the left
90
How can you treat sour crop?
If solid, can remove with forceps without anesthesia If liquified, must anesthetize and flush & drain
91
What is the maintenance amount for birds?
50 mL/kg/day
92
For how many days do you want to stretch the administration of fluids to treat dehydration deficit?
3 days
93
You see a lot of white spots on the bird liver, what is a top diagnosis?
Mycobacteriosis
94
When handling the bird, what do you not want to restrict movement of?
The keel and ribs for breathing
95
How do you treat chemokoptes mange?
Ivermectin PO or SQ
96
What is the etiology of proventricular dilation disease of birds?
Avian borna virus
97
You see a yellow mass obstruction inside the birds body cavity, what can be the cause?
Aspergillosis
98
T/F: Pox virus is deadly but not contagious
False
99
What is the condition for birds where their diet in high carbohydrates leads to muscle outgrowth and bone disfiguration?
Angel wing
100
T/F; Avian abscesses are usually soft
False
101
What is the disease called for 'beak rot'?
Psittacine beak and feather disease
102
Is it normal to see a bird spleen on radiographs?
No, it means something is wrong
103
What is a reportable disease that causes respiratory and GI signs?
Chlamydophila psittaci
104
How can you diagnose chlamydophila psittaci?
PCR, serology, culture
105
How do you treat chlamydophila psittaci?
Antibiotics (45 days minimum), injectable food
106
What is the diseases where uric acid crystalizes and and deposits throughout the body?
Gout