Lab 1

Question 1

Hair that exhibits continuous growth

Answer 1

Angora

Question 2

Hair that reaches a definitive length and is shed

Answer 2

Definitive

Question 3

Long, stiff hairs, that serve as tactile receptors

Answer 3

Vibrissae

Question 4

Hair that functions primarily for protection

Answer 4

Guard Hair

Question 5

Hair that usually consists of short, dense undercoat

Answer 5

Under Hair

Question 6

Glands that produce milk to nourish young

Answer 6

Mammary Glands

Question 7

Provides pressure gradient for respiration

Answer 7

Muscular Diaphragm

Question 8

How many chambers does a mammal heart have?

Answer 8

4

Question 9

How many aortic arches do mammals have? what direction?

Answer 9

1, to the left

Question 10

Opening in bone for a blood vessel or nerve

Answer 10

Foramen

Question 11

Projection of bone

Answer 11

Process

Question 12

Knob-shaped bump on bone

Answer 12

Condyle

Question 13

Depression in bone for muscle attachment

Answer 13

Fossa

Question 14

Elevated region of bone

Answer 14

Crest or ridge

Question 15

area between zygomatic arch and cranium where eye rests

Answer 15

Orbit

Question 16

rounded, hollow, thin-walled structure

Answer 16

Bullae

Question 17

Opening through bone

Answer 17

Fenestra

Question 18

Junction between two contiguous bones of the skull

Answer 18

Suture

Question 19

5 differentiated sections of the vertebral column

Answer 19

Cervical, Thoracic, Lumbar, Sacral, and Caudal

Question 20

Lower jaw is composed of how many pairs of Dentaries?

Answer 20

1 pair

Question 21

How does the lower jaw interact with the cranium?

Answer 21

Dentary-squamosal jaw articulation

Question 22

Points and bumps on crown of tooth

Answer 22

Cusps

Question 23

Portion of tooth above gumline

Answer 23

Crown

Question 24

side of the teeth closest to the tongue

Answer 24

lingual surface

Question 25

side of the teeth closest to the cheek

Answer 25

Labial/buccal surface

Question 26

surface of the tooth that meets with the tooth in the opposing jaw

Answer 26

Occlusal surface

Question 27

Gap between teeth

Answer 27

Diastema

Question 28

Having 2 sets of teeth, baby and adult teeth

Answer 28

Diphyodont dentition

Question 29

Having one set of teeth

Answer 29

Monophyodont dentition

Question 30

Having teeth that vary in size, structure, and function

Answer 30

Heterodont dentition

Question 31

Chisel-like teeth that are used for gathering and gnawing

Answer 31

Incisor

Question 32

Long, unicuspid teeth that are used for gathering and holding

Answer 32

Canine

Question 33

Flattened teeth used for grinding and slicing, behind canines

Answer 33

Premolar

Question 34

Flattened teeth used for grinding and slicing, behind premolar

Answer 34

Molar

Question 35

teeth that are the same in size, structure, and function

Answer 35

Homodont dentition

Question 36

High crowned molars; allows teeth to wear down but still be useful

Answer 36

Hypsodont dentition

Question 37

low crowned molars

Answer 37

Brachyodont dentition

Question 38

primitive molar, all other molars evolved from this type

Answer 38

Tribosphenic

Question 39

Modified tribosphenic molar with crests connecting cusps

Answer 39

Lambdodont

Question 40

Upper molar has a "V" shaped crest

Answer 40

Zalambdodont

Question 41

Upper molar has a "W" shaped crest

Answer 41

Dilambdodont

Question 42

Modified tribosphenic molar containing an extra cusp giving the molar a square shape

Answer 42

Euthermorphic

Question 43

Cusps fused together to form long ridges; provides abrasive surface for grinding vegetation.

Answer 43

Lophodont

Question 44

Cusps are elongated and form ridges that are crescent shaped and longitudinally oriented.

Answer 44

Selenodont

Question 45

Quadrate molars with round cusps

Answer 45

Bunodont

Question 46

cusps are reduced to 2 major cusps that form a sharp cutting edge

Answer 46

Secodont

Question 47

A specialized secodont molar found only in the Order Carnivora

Answer 47

Carnassial Pair

Question 48

Shorthand method used my mammalogists to indicate number of teeth.

Answer 48

Dental formula

Question 49

Name the 3 middle ear bones

Answer 49

Malleus, incus, and stapes

Question 50

Derived from the articular bone in lower jaw

Answer 50

Malleus

Question 51

derived from quadrate bone found in cranium

Answer 51

Incus

Question 52

Derived from columella

Answer 52

Stapes

Question 53

Walking

Answer 53

Ambulatory

Question 54

Running

Answer 54

Cursorial

Question 55

Jumping

Answer 55

Saltasorial

Question 56

Climbing utilizing long, sharp claws

Answer 56

Scansorial

Question 57

Hand over hand swinging

Answer 57

Brachiating

Question 58

quadrapedal inverted "walk" while hanging under tree limbs

Answer 58

sloth movement

Question 59

Entire foot rests flat on the ground

Answer 59

Plantigrade

Question 60

Only phalanges rest on the ground

Answer 60

Digitigrade

Question 61

Only the distal most ends of the phalanges (Tip toe) rest on the ground

Answer 61

Unguligrade

Question 62

Columnar limbs in which each bone is positioned directly above the bone below.

Answer 62

Graviportal