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Bio 11.1 (Zoology) > Exercise 14: Animal Integuments and Integumentary Derivatives > Flashcards

Exercise 14: Animal Integuments and Integumentary Derivatives Flashcards

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Biology 101 flashcards
1
Q

It is the general term for the outer covering of animals.

A

integument

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2
Q

Identify the functions of integuments.

A

protection, sensation, and homeostasis

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3
Q

Complete the sentence below:
Integuments consist of one or more layers of ____________ and ____________ tissues.

A

connective, epithelial

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4
Q

Are external structures which originate from the integument.

A

integumentary derivatives

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5
Q

TRUE or FALSE:
Integumentary derivatives include long-lasting secretions and deposits of the epithelium.

A

True

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6
Q

It is formed by hardened integumentary derivatives which functions for the protection of internal structures and attachment of muscles.

A

exoskeleton

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7
Q

It refers to the epithelial layer of the integument of invertebrates.

A

epidermis

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8
Q

Identify the functions of the substances secreted by the epidermis.

A
  • protection
  • prevention of desiccation
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9
Q

TRUE or FALSE:
In invertebrates, integument derivatives are largely secretions that are laid over the epithelium.

A

True

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10
Q

Complete the sentence below:
The cuticle of the earthworm is ___________, while its hair-like setae are ____________.

A

collagenous, chitinous

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11
Q

Complete the sentence below:
The chitinous ____________ of arthropods is segmented into ____________, with certain segments having ____________.

A

cuticle, plates, setae

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12
Q

It refers to the exposed part of the snail.

A

foot

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13
Q

Complete the sentence below:
The foot of the snail is covered by the ____________.

A

epidermis

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14
Q

Complete the sentence below:
The visceral mass under the shell is covered by the ____________.

A

mantle

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15
Q

Complete the sentence below:
The mantle of the snail is composed of two layers of ____________ separated by one layer of ____________.

A

epithelium, connective tissue

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16
Q

It refers to the thick, non-cellular outer layer of Ascaris lumbricoides.

A

cuticle

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17
Q

Complete the sentence below:
In Ascaris lumbricoides, inner to the cuticle is the thin pigmented ____________.

A

epidermis

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18
Q

TRUE or FALSE:
The epidermis secretes the cuticle.

A

True

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19
Q

Complete the sentence below:
In Ascaris lumbricoides, the coiled ____________ is beneath the epidermis.

A

longitudinal muscle

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20
Q

It refers to the complex integument of all vertebrates.

A

skin

21
Q

Identify the 2 regions of the skin.

A
  • epidermis
  • dermis or corium
22
Q

In all vertebrates, the epidermis consists of ____________ epithelium.

A

stratified squamous

23
Q

In all vertebrates, the dermis consists of ____________.

A

mostly connective tissue

24
Q

It refers to the outermost layer of the epidermis that is usually composed of one layer.

A

stratum corneum

25
Q

Which cells is the stratum corneum composed of?

A

squamous cells

26
Q

It refers to the innermost layer of the epidermis.

A

stratum germinativum

27
Q

Which cells is the stratum germinativum composed of?

A

monolayer of columnar cells

28
Q

It refers to the layer of loose connective tissue in the dermis which contains chromatophores, cutaneous glands, small blood vessels, and sensory neurons.

A

stratum laxum

29
Q

Are cells containing pigment granules.

A

chromatophores

30
Q

Are formed by the infolding of the stratum germinativum into the dermis.

A

cutaneous glands

31
Q

It refers to the deeper layer of the dermis.

A

stratum compactum

32
Q

It is composed of dense, irregular connective tissue in alternating horizontal and vertical strands.

A

stratum compactum

33
Q

Located beneath the stratum compactum, it connects the skin with the underlying muscle.

A

subcutaneous loose connective tissue

34
Q

Determine if the following structure is an epidermal/dermal derivative:
bony scales of fishes

A

dermal derivative

35
Q

Determine if the following structure is an epidermal/dermal derivative:
antlers of deers

A

dermal derivative

36
Q

Determine if the following structure is an epidermal/dermal derivative:
horny scales of reptiles, birds, and mammals

A

epidermal derivative

37
Q

Determine if the following structure is an epidermal/dermal derivative:
hair or fur (collectively known as pelage)

A

epidermal derivative

38
Q

Determine if the following structure is an epidermal/dermal derivative:
feathers of birds (collectively known as plumage)

A

epidermal derivative

39
Q

Determine if the following structure is an epidermal/dermal derivative:
nails, claws, or hooves

A

epidermal derivative

40
Q

TRUE or FALSE:
In certain vertebrates, both dermal and epidermal derivatives may be present in the same exoskeleton.

A

True

41
Q

It refers to the dorsal region of the turtle shell.

A

carapace

42
Q

It refers to the ventral region of the turtle shell.

A

plastron

43
Q

The outer, darker layers of the turtle shell originate from ____________ and are termed ____________.

A

epidermis, scutes

44
Q

The inner, lighter layers of the turtle shell originate from the ____________ and are termed ____________.

A

dermis, plates

45
Q

The other term for dermis.

A

corium

46
Q

TRUE or FALSE:
In vertebrates, the squamous cells of the epidermis are dead cells that constantly ebing shed off.

A

True

47
Q

TRUE or FALSE:
The columnar cells of the stratum germinativum are continuously dividing.

A

True

48
Q

The transitional layer between the stratum corneum and stratum germinativum is equivalent to the ____________ and _____________ of the human skin.

A

stratum granulosum, stratum spinosum

49
Q

TRUE or FALSE:
The chromatophores are darkly stained, mostly lying beneath the epidermis.

A

True

Bio 11.1 (Zoology) (5 decks)

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