Lab 16 Outline: Vertebrate Tissue Flashcards
epithelial tissue
covering and lining of the organs
protection, exchange, and production of materials
simple
one layer
stratified
two or more layers
squamous
thin flat cells
simple squamous
exchange of materials
ex: capillaries and alveoli
simple stratified
protection
ex: oral mucosa, and epidermis
cubodial
cube or pyramid shape
lines ducts and secretory portions of glands( pancreas and thyroid)
columnar
- tall and narrow
- secretion, absorption, and transport of nutrients
ex: stomach and small intestine
Muscle Tissue
movement of body parts
cardiac muscle
cross striations branched few nuclei involuntary walls of heart
skeletal muscle
cross striations unbranched hundreds of nuclei under voluntary control 40% of body weight
smooth muscle
no cross striations spindle shaped cells large nuclei involuntary long, sustained contraction
ex: walls of blood vessels and intestines
connective tissues
- extracellular matrix; up to 90% of volume, varying consistencies
- few scattered cells
- adhesion, shaping, structural strength and transport
Bone
ECM: collagen fibers and CaPO4 lacunae with osteocytes canaliculi lamellae central blood vessles heavy and hard for protection and support
Hyaline Cartilage
- ECM; firm with cartilage
- little vascular supply causing nutrients to diffuse through the matrix
- lightweight and flexible
- support and protection ( larynx, trachea, and bone articulations)
- most bones begin as cartilage
areolar
ECM: few elastic and collagen fibers: soft and watery
support and cushion
adipose
cells: adipocytes
insulation, cushoining, and food storage
dense (fibrous)
ECM; bunch of collagen fibers in one direction
-structural strength and support
Blood
ECM: plasma ( mostly water and electrolytes)
Erythrocytes
RBC
- biconcave
- anucleated
Leukocytes
WBC
- nucleated
- immune response
thrombocytes
Platelets
clotting
Nervous Tissue
primary cell type: neuron (plus other supporting cells)
a. cell body
b. axons
c. dendrites
d. synapse
- pathways to conduct information throughout the nervous system