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BIOL 252 Portage Learning - Module 2 Quick Study Questions and Answers
with Complete Solutions UPDATED!!!
3 types of Fibers - ANSWER Collagen (white, strong, most
abundant), reticular (thin collagen network), elastic (stretch and
recoil)
5 Cardinal Signs of Inflammation - ANSWER 1) redness -
Vasodilation, histamine from mast cells dilates blood vessels
2) Swelling - increased vessel permeability --> Fluid leaks into
tissue
3) Heat - Increased blood flow to the area
4) Pain - Prostaglandins and other chemicals stimulate pain
receptors
5) Loss of Function - Pain + Swelling limit normal movement +
use
ABCDE Rule of Skin Cancer - ANSWER A - Asymmetry
B - boarder, edges are irregular, ragged or blurred
C - Color variation (Browns, blacks, reds, whites, blues)
D - Diameter, larger than 6 mm (about size of pencil eraser)
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E - Evolution, any change in size, shape, color, or new symptoms
Accessory Organs of the Skin - ANSWER Hair, Nails, Sweat
Glands, Oil (Sebaceous) glands
Apocrine Secretion (exocrine glands only) - ANSWER Part of the
cell membrane buds off with product ex: mammary glands
Cardiac Muscle - ANSWER Control: involuntary
Striations: yes
cell shape: branching (intercalated discs)
Nuclei: 1-2 nuclei
Special feature: intercalated discs coordinate contraction
Location: heart only
Regeneration: extremely limited, repair usually incomplete
Cardiovascular System - ANSWER heart and blood vessels
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Compare the control and striation patterns of the three muscle
types. - ANSWER Skeletal: voluntary, striated; Cardiac:
involuntary, striated; Smooth: involuntary, nonstriated.
Connective Tissue Functions - ANSWER Structural support,
binding/connecting tissues, protection, insulation, fat storage,
transport of substances
Defining characteristics of Epithelial Tissue - ANSWER 1) Polarity
- free apical surface facing lumen and basal surface attached to
basement membrane
2) Avascular but innervated
3) Basal surface attached to basement membrane - anchors
epithelium/nutrients and gases from dermis can diffuse through
it
4) Highly regenerative - constantly replaced due to high-traffic
locations
5) cells are connected via cell junctions
Dense Connective Tissue Proper - Dense Elastic - ANSWER Main
Fiber: Elastic
Orientation: parallel
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Location: Walls of large arteries (aorta) and bronchial tubes
Function: Elasticity for recoil
Dense Connective Tissue Proper - Dense Irregular - ANSWER
Main Fiber: Collagen
Orientation: random/multidirectional
Location: Dermis of skin, fibrous organ capsules, joint capsules
Function: resist tension in MULTIPLE directions
Dense Connective Tissue Proper - Dense Regular - ANSWER
Main fiber: Collagen
Orientation: parallel bundles
Location: Tendons (muscle to bone), ligaments (bone to bone),
and aponeuroses
Function: Resist tension in ONE direction
Dermabrasion - ANSWER Removes all epidermal layers down to
but not including the stratum basale. If skin is removed into the
dermis, bleeding and pain will result. If stratum basale is
destroyed, regeneration can still occur via hair follicles and
dermal glands that extend into dermis
BIOL 252 Portage Learning - Module 2 Quick Study Questions and Answers
with Complete Solutions UPDATED!!!
3 types of Fibers - ANSWER Collagen (white, strong, most
abundant), reticular (thin collagen network), elastic (stretch and
recoil)
5 Cardinal Signs of Inflammation - ANSWER 1) redness -
Vasodilation, histamine from mast cells dilates blood vessels
2) Swelling - increased vessel permeability --> Fluid leaks into
tissue
3) Heat - Increased blood flow to the area
4) Pain - Prostaglandins and other chemicals stimulate pain
receptors
5) Loss of Function - Pain + Swelling limit normal movement +
use
ABCDE Rule of Skin Cancer - ANSWER A - Asymmetry
B - boarder, edges are irregular, ragged or blurred
C - Color variation (Browns, blacks, reds, whites, blues)
D - Diameter, larger than 6 mm (about size of pencil eraser)
,2|Page
E - Evolution, any change in size, shape, color, or new symptoms
Accessory Organs of the Skin - ANSWER Hair, Nails, Sweat
Glands, Oil (Sebaceous) glands
Apocrine Secretion (exocrine glands only) - ANSWER Part of the
cell membrane buds off with product ex: mammary glands
Cardiac Muscle - ANSWER Control: involuntary
Striations: yes
cell shape: branching (intercalated discs)
Nuclei: 1-2 nuclei
Special feature: intercalated discs coordinate contraction
Location: heart only
Regeneration: extremely limited, repair usually incomplete
Cardiovascular System - ANSWER heart and blood vessels
,3|Page
Compare the control and striation patterns of the three muscle
types. - ANSWER Skeletal: voluntary, striated; Cardiac:
involuntary, striated; Smooth: involuntary, nonstriated.
Connective Tissue Functions - ANSWER Structural support,
binding/connecting tissues, protection, insulation, fat storage,
transport of substances
Defining characteristics of Epithelial Tissue - ANSWER 1) Polarity
- free apical surface facing lumen and basal surface attached to
basement membrane
2) Avascular but innervated
3) Basal surface attached to basement membrane - anchors
epithelium/nutrients and gases from dermis can diffuse through
it
4) Highly regenerative - constantly replaced due to high-traffic
locations
5) cells are connected via cell junctions
Dense Connective Tissue Proper - Dense Elastic - ANSWER Main
Fiber: Elastic
Orientation: parallel
, 4|Page
Location: Walls of large arteries (aorta) and bronchial tubes
Function: Elasticity for recoil
Dense Connective Tissue Proper - Dense Irregular - ANSWER
Main Fiber: Collagen
Orientation: random/multidirectional
Location: Dermis of skin, fibrous organ capsules, joint capsules
Function: resist tension in MULTIPLE directions
Dense Connective Tissue Proper - Dense Regular - ANSWER
Main fiber: Collagen
Orientation: parallel bundles
Location: Tendons (muscle to bone), ligaments (bone to bone),
and aponeuroses
Function: Resist tension in ONE direction
Dermabrasion - ANSWER Removes all epidermal layers down to
but not including the stratum basale. If skin is removed into the
dermis, bleeding and pain will result. If stratum basale is
destroyed, regeneration can still occur via hair follicles and
dermal glands that extend into dermis
