Week 4 - Tissues Flashcards
What are the 4 types of tissue?
Epithelia
Connective Tissues
Muscle Tissue
Neural Tissue
How are epithelial tissue classified?
Layers:
Simple
Stratified
Shape:
Squamous
Cuboidal
Columnar
Transitional
Give examples of squamous epithelium and function
Simple: Linings of blood vessels and alveoli, reduces friction, absorption and secretion.
Stratified: Skin, Provides physical protection against abrasion, pathogens, and a chemical attack.
Give examples of Cuboidal Epithelium and Function
Simple: Glands,ducts, limited protection, secretion, absorption.
Stratified: Lining of some ducts(rare), Protection, secretion, absorption.
Give examples of transitional epithelium and function
Urinary bladder- permits expansion and recoil after stretching.
Give examples of Columnar epithelial cells and state their function.
Simple- Lining of stomach and intestine, protection, secretion, absorption
Pseudostratified Ciliated - Lining of nasal cavity, trachea, and bronchi. Protection,secretion,move mucus with cilia.
Stratified - Small areas of the pharynx, protection.
How are exocrine glands classified?
Shape: tubular, coiled, branched, alveolar
Number of ducts: Simple(one),Compound(Multiple)
What are the three types of glandular secretion?
Merocrine - Vesicles are discharged
Apocrine - A portion of cytoplasm shed
Holocrine - whole cell bursts.
Give examples of blood cells
Red blood cells
White blood cells - Monocytes, Lymphocytes, Eosinophil, Neutrophil, Basophil
Platelets
Give locations of adipose tissue and functions
Deep to skin, at sides, buttocks, breasts, padding around eyes and kidneys.
Function - Provides padding and cushions shocks: insulates, stores energy.
Give locations of reticular Tissue and functions
Locations: Liver, Kidney, spleen, Lymph nodes, and bone marrow
Functions: Provides supporting framework
Give the three types of Dense connective tissue with examples and functions of each
Regular - Between skeletal muscles and skeleton , between bones or stabilising positions of internal organs (ligaments)
F: Provides firm attachment, conducts pull of muscles, stabilises relative position of bones.
irregular - Capsules of visceral organs, periostria and perichondria, nerve and muscle sheaths, dermis
F: Provides strength to resist forces applied from many directions, helps prevent over expansion of organs such as urinary bladder.
Elastic - Between vertebrae of the spinal column, in blood vessel walls.
F: Stabilises, cushions shocks, permits expansion and contraction.
State the three types of cartilage and give examples and functions of each.
Hyaline Cartilage - between tips of ribs and bones of sternum: covering bone surfaces at synovial joints: forming part of nasal septum
F: provides stiff but somewhat flexible support: reduces friction between bony surfaces.
Elastic Cartilage - Auricle of external ear; epiglottis.
F: provides support, but tolerates distortion without damage and return to original shape.
Fibrocartilage - Pads within knee joint: intervertebral discs.
F: Resists compression: prevents bone-to-bone contact: limits movement.
Describe the fasciae
Superficial Fascia - Between skin and underlying organs. areolar tissue and adipose tissue.
Deep Fascia - Forms a strong, fibrous internal framework. Dense connective tissue.
Subeserous Fascia - Between serous membranes and deep fascia. Areolar Tissue.
What are the three types of muscle tissue
Skeletal - under voluntary control, striated, multinucleated. Large Cells. Controlled via nerve
Cardiac - Involuntary control, striated, smaller, controlled by pacemaker cells. Intercalated disks - electrical connection
Smooth - not striated, small, pacesetter cells. Hormonal control
