Study deck Flashcards
What does epithelial tissue do?
Lining, cover, protect
Where is Simple Cuboidal Epithelium located?
The tubular lining of kidneys, glandular ducts
Where is Simple Columnar Epithelium located?
Digestive tract and upper respiratory tract lining
Where is Stratified Squamous Epithelium located?
The lining of the mouth and vagina
Where is Stratified Cuboidal epithelium located?
Mammary glands, sweat gland and salivary glands
Where is Stratified Columnar epithelium located?
Male urethra and lobar ducts of salivary glands
Where is Pseudostratified epithelium located?
Respiratory passage and ducts of many glands
Where is Transitional epithelium located?
Urinary bladder, urethra, ureter
Where is Simple squamous located?
Blood vessel lining, air sac lining of lungs
What is the function of simple squamous?
Transport by diffusion and where minimal protection is required
What is the function of simple cuboidal?
Absorption and secretion
What is the function of simple columnar?
Protection, absorption, mucus secretion and movement in a specific direction
What is the function stratified squamous?
Protection
What is the function of stratified cuboidal epithelium?
Protection of ducts of various glands
What is the function of stratified columnar epithelium?
Protection and secretion
What is the function of pseudostratified epithelium?
Protection, secretion and movement of mucous
What is the function of transitional epithelium?
Stretch readily to accommodate the different volume of liquids
Act as a barrier and have tight junctions to prevent reabsorption of toxic substances
What is a duct?
A tube or passageway
What are the types of loose connective tissue?
Areolar tissue, adipose tissue, and reticular tissue
What are the types of dense connective tissue?
Regular tissue, irregular tissue, elastic tissue
What is the function of areolar tissue?
Provides support to epithelium
What is the function of adipose tissue?
Provides energy (fat)
What is the function of reticular tissue?
Supports tissue and immune cells
What is the function of regular tissue? (dense connective tissue)
Resist pulling stress, attach muscle to bone, attach bones to bones
What is the function of irregular tissue? (dense connective tissue)
Resist force (uniform strength in all directions)
What is the function of elastic tissue? (dense connective tissue)
Allow stretch and recoil
What are the types of connective tissue? (broad categories)
CTP, blood, bone, cartilage
What are the types of CTP?
Loose and dense
What are the types of cartilage tissue?
Hyaline, fibrocartilage, and elastic
What is the function of hyaline cartilage?
Cushion, support, and reinforce other types of tissue (flexible, but firm)
What is the function of elastic (cartilage) tissue?
Maintain shape (allows stretch)
What is the function of fibrocartilage?
Resist compression (toughest type of cartilage)
What is the function of blood?
Transport oxygen, carbon dioxide, and nutrients
What is the function of bone?
Maintains the shape of the body
Where is areolar tissue found?
Found under skin
Where is adipose tissue found?
Found under the skin
Where is reticular tissue found?
Found in internal framework of organs
Where is regular tissue found?
Found in ligaments (bone to bone) and tendons (bone to muscle)
Where is irregular tissue found?
Found in the dermis
Where is dense elastic CTP found?
Found in large arteries
Where is hyaline cartilage found?
Found in nose, trachea, and ribs
Where is elastic cartilage found?
Found in outer ear and epiglottis
Where is fibrocartilage found?
Found in intervertebral discs
Where is blood found?
Found in arteries, veins, and capillaries
Where is bone found?
Found in skeleton
What are the three types of muscle tissue?
Cardiac, smooth, and skeletal
What is the function of nervous tissue?
Communication throughout body
What are the main functions of the integumentary system?
Protection, vitamin D production, excretion, sensation, and body temperature, (immunity)
What are the layers of the integumentary system? (superficial to deep)
Epidermis, dermis, and hypodermis
What are the layers of the epidermis? (deep to superficial)
Stratum basale
Stratum spinosum
Stratum granulosum
Stratum lucidum
Stratum corneum
What are melanocytes?
Melanin cell
What layer of epidermis are melanocytes found?
basale layer (stratum basale)
What are langerhan cells?
The first line of defense against bacteria and viruses (Immune protection)
What are keratinocytes?
A common type of skin cell that is found in the epidermis.
What is the function of keratinocytes?
- Provide structure for the skin, hair, and nails
- Waterproof the skin
What does keratinized mean?
Dry
What does non-keratinized mean?
Wet
What does vitamin D promote?
Calcium absorption
What happens when UV light hits epidermis?
The cells of epidermis convert 7-D3 to cholecalciferol
What happens after 7-D3 is converted into cholecalciferol?
Cholecalciferol is converted into calcitriol
What does calcitriol do?
Increase absorption of calcium and bone mineralization
What is calcium heavily involved in?
Muscle contraction
What are the two layers of the dermis?
Papillary and reticular layers
What is the order of the dermis layers (superficial to deep)?
Papillary
Reticular
What is the function of the papillary layer?
Support epidermis and regulate body temperature
What is the function of the reticular layer?
- Regulate blood flow to skin
- Sense touch
- Support the epidermis
- (Toughest layer of skin skin)
What is the function of the hypodermis?
- Energy reserve (fat layer)
- Connects skin to underlying tissue
What are the layers of the hair? (Deep to superficial)
Medulla
Cortex
Cuticle
What are the layers of hair growth?
Anagen
Catagen
Telogen
What does color of hair depend on?
The color of hair depends on the amount and type of melanin
What are the two types of hair?
Vellus and terminal
What type of hair is vellus?
Fine hairs (located all over body)
What type of hair is terminal?
Coarse hairs (facial hair, pubic hair, hair on head)
What muscle makes hair stand up?
Arrector pili muscle (this is an involuntary contraction)
What is the anatomical name for the nail?
Unguis
What are the parts of the nail (unguis)?
Nail plate
Nail matrix
Nail bed
Cuticle
What are the two categories of glands?
Endocrine and exocrine
What are the two categories of exocrine glands?
Sebaceous and sudoriferous
What are apocrine glands?
Glands found in the armpits that smell bad
What are merocrine glands?
Glands that function to secrete, protect, and thermoregulate
What is the function of glial cells?
Support neurons
What strata is only in thick skin?
Stratum lucidum
What are the two types of melanin?
Eumelanin and pheomelanin
What do Merkel cells do?
Sense and respond to fine touch and pressure