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Bio 241: Animal Biology > Lab: Snake Anatomy > Flashcards

Lab: Snake Anatomy Flashcards

1
Q

What is #1? Function?

A

Scales; camouflage, has unique colors and patterns

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2
Q

What is #2? Function?

A

Shields; protection on dorsal & ventral head

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3
Q

What is #3? Function?

A

Mental Scale; provides the bottom lip of snake

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4
Q

What is #4? Function?

A

Chin Shields; cover throat of snake with Gular scales

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5
Q

What is #5? Function?

A

Gular Scales; cover throat of snake with Chin Shields

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6
Q

What is #6? Function?

A

Mental Groove; line that divides chin shields and gular scales

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7
Q

What is #7? Function?

A

Ventral Scales; signifies start of scutes; behind gular scales

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8
Q

What is #8? Function?

A

Scutes; locomotion, move with friction in specific direction

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9
Q

What is #9? Function?

A

Vent; exit point of cloaca for materials to be excreted in environment

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10
Q

What is #10? Function?

A

Anal Scales; protect the cloaca, can be single or layered

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11
Q

What is #11? Function?

A

Tail; last segment of body, come in many forms

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12
Q

What is #12? Function?

A

Nares; bring air into respiratory system

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13
Q

What is #13? Function?

A

Glottis; air inhaled from nares goes here, located on floor of mouth

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14
Q

What is #14? Function?

A

Eyes; track movement of predators and prey

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15
Q

What is #15? Function?

A

Tongue; detects smells, constantly moving to detect chemicals in the air

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16
Q

What is #16? Function?

A

Jacobsen’s Organ; chemicals from the tongue are passed here to be interpreted by brain

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17
Q

What is #17? Function?

A

Maxillary Teeth; Grasp prey during feeding, 2/4 upper rows of teeth

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18
Q

What is #18? Function?

A

Palatine Pterygoid Teeth; Grasp prey during feed, 2/4 upper rows of teeth

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19
Q

What is #19? Function?

A

Mandibular Teeth; Grasp prey during feeding, 2 rows of lower teeth

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20
Q

What is #20? Function?

A

Fangs; modified versions of maxillary teeth in venomous snakes

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21
Q

What is #21? Function?

A

Venom Glands; produces/releases venom into duct

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22
Q

What is #22? Function?

A

Venom Duct; receives venom from glands and delivers to target

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23
Q

What is #23? Function?

A

Esophagus; entry to digestive system

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24
Q

What is #24? Function?

A

Vertebrae; houses spinal cord and supports body

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25
What is #25? Function?
Ribs; attach to vertebrae, support, protection
26
What is #26? Function?
Skull; houses/protects brain and sensory organs
27
What is #27? Function?
Hypaxial/Epaxial Muscles; coordinate movements in specific directions
28
What is #28? Function?
Muscularis Compressor Glandulae; Main muscle in head for toxic bites in venom snakes
29
What is #29? Function?
Adductor Mandibulae; close the jaw and grasp prey to subdue it
30
What is #30? Function?
Buccal Cavity; where digestion begins within mouth
31
What is #31? Function?
Stomach; where mechanical digestion occurs and digestive enzymes are secreted
32
What is #32? Function?
Small Intestine; further digestion, divided into 5 sections
33
What is #32a? Function?
Duodenum; recieves enzymes from liver and pancreas
34
What is #32b? Function?
Jejunum; middle portion of small intestine
35
What is #32c? Function?
Illeum; end portion of small intestine
36
What is #33? Function?
Liver; excretes bile/waste and stores nutrients
37
What is #34? Function?
Gall Bladder; bile from liver is stored here
38
What is #35? Function?
Spleen; makes RBC in younger snakes and destroys them in older snakes
39
What is #36? Function?
Pancreas; regulates blood glucose levels
40
What is #37? Function?
Colon; absorbs water from undigested food
41
What is #38? Function?
Cloaca; termination point of colon
42
What is #39? Function?
Kidneys; filtering liquid waste and toxins out of blood
43
What is #40? Function?
Ureters; storage area for waste before excretion
44
What is #41? Function?
Heart; 3 chambered, closed system, elongated for body
45
What is #41a? Function?
Right Atrium; receives oxygen-poor blood from body circulation
46
What is #41b? Function?
Left Atrium; receives oxygen-rich blood from pulmonary circulation
47
What is #41c? Function?
Ventricle; emptying point of atriums
48
What is #42? Function?
Thymus; production of immune cells to fight infection
49
What is #43? Function?
Thyroid; metabolism and hormone secretion to initiate shedding process
50
What is #44? Function?
Pulmonary Artery; empties mixed blood into cavium pulmonac
51
What is #45? Function?
Left Aortic Arch; ejection point of blood from cavum vanpsum; forms descending aorta
52
What is #46? Function?
Right Aortic Arch; ejection point of blood from cavum vanpsum; forms descending aorta
53
What is #47? Function?
Descending Aorta; form R and L aortic arches
54
What is #48? Function?
Left Carotid Artery; branch of Right aorta that carries blood to cranium
55
What is #49? Function?
Right Carotid Artery; Branch of R aorta that carries blood to cranium
56
What is #50? Function?
Pharynx; common chamber for respiratory and digestive systems
57
What is #51? Function?
Trachea; carries inhaled air to the lungs
58
What is #52? Function?
Primary Bronchi (2); receives air from trachea
59
What is #53? Function?
Vestigial Left Lung; reduced or absent lung in most snakes
60
What is #54? Function?
Right Lung; spans entire length of body and contains air sac
61
What is #55? Function?
Air Sac; gas exchange and buoyancy in water
62
What is #56? Function?
Choanal Slit; passageway for air inhaled to be passed to glottis
63
What is #57? Function?
Testes; sperm production
64
What is #58? Function?
Vas Deferens; connects testes to cloaca
65
What is #59? Function?
Ovary; egg production and storgae
66
What is #60? Function?
Oviduct; attaches ovaries to cloaca
67
What is #61? Function?
Fat Bodies; Enable sustaining energy and life functions during cold months
68
What is #62? Function?
Brain; part of CNs, not higher-order structure
69
What is #63? Function?
Spinal Cord; sends impulses to rest of body, part of CNS
70
What is #64? Function?
Telencephalon; where learning occurs and memories are stored
71
What is #65? Function?
Mesencephalon; auditory and visual processing center
72
What is #66? Function?
Cerebellum; coordination of muscles

Bio 241: Animal Biology (26 decks)

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