Connective Tissue Types (Including cartilage, bone, blood and Nervous Tissue)

Connective Tissue Proper: Loose connective Tissue, areolar
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Terms in this set (15)
- Description: Gel-like matrix with all three fiber types; cells: fibroblasts, macrophages, mast cells, and some white blood cells

-Function: wraps and cushions organs; its macrophages phagocytize bacteria; plays an important role in inflammation; holds and conveys tissue fluids.

Location: Widely distributed under epithelia of body, e.g., forms lamina propria of mucous membranes; packages organs; surrounds capillaries.
Image: Connective Tissue Proper: Loose connective Tissue, areolar
- Description: Matrix as in areolar connective tissue, but very sparse; closely packed adipocytes, or fat cells, have nucleus pushed to the side of large fat droplet.

-Function: Provides reserve food fuel; insulates against heat loss; supports and protects organs

Location: Under skin in the hypodermis, around kidneys and eyeballs; within abdomen; in breasts.
Image: Connective Tissue Proper: loose connective tissue, Adipose
- Description: Primarily irregularly arranged collagen fibers; some elastic fibers; major cell type is the fibroblast; defense cells and fat cells are also present.

-Function: Able to withstand tension exerted in many directions; provides structural strength

Location: Fibrous capsules of organs and of joints; dermis of the skin; submucosa of digestive tract.
Image: Connective Tissue Proper: Dense connective Tissue, Dense Irregular
- Description: Primarily parallel collagen fibers; a few elastic fibers; major cell type is the fibroblast

- Function: Attaches muscles to bones or to muscles; attaches bones to bones; withstands great tensile stress when pulling force is applied in one direction

Location: Tendons, most ligaments, aponeuroses
Image: Connective Tissue Proper: Dense connective Tissue, Dense Regular
-Description: Dense regular connective tissue containing a high proportion of elastic fibers.

-Function: Allows recoil of tissue following stretching; maintains pulsatile flow of blood through arteries; aids passive recoil of lungs following inspiration

Location: Walls of large arteries; within certain ligaments associated with the vertebral column; within the walls of the bronchial tubes.
Image: Connective Tissue Proper: Dense connective tissue, Elastic
Description: Amorphous but firm matrix; collagen fibers form an imperceptible network; chondroblasts produce the matrix and when mature (chondrocytes) lie in lacunae.

Function: Supports and reinforces; serves as resilient cushion; resists compressive stress.

Location: Forms most of the embryonic skeleton; covers the ends of long bones in joint cavities; forms costal cartilages of the ribs; cartilages of the nose, trachea, and larynx.
Image: Cartilage: Hyaline
Connective Tisue: BloodDescription: Red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes) in a fluid matrix (plasma). Function: Transport respiratory gases, nutrients, wastes, and other substances Location: Contained within blood vesselsskeletal muscleDescription: Long, cylindrical, multinucleate cells; obvious striations Function: Voluntary movement; locomotion; manipulation of the environment; facial expression; voluntary control Location: In skeletal muscles attached to bones or occasionally to skinCardiac muscleDescription: Branching, striated, generally uninucleate cells that interdigitate at specialized junctions (intercalated discs). Function: As it contracts, it propels blood into the circulation; involuntary control. Location: The middle layer (myocardium) of the heart wall.Smooth muscleDescription: Spindle-shaped cells with central nuclei; no striations; cells arranged closely to form sheets Function: propels substances or objects (foodstuffs, urine, a baby) along internal passageways; involuntary control Location: mostly in the walls of hollow organsNervous tissueDescription: Neurons are cells with processes that branch; cell processes that may be quite long extend from the nucleus -containing cell body; also contributing to nervous tissue are nonconducting supporting cells, neuroglia. Function: Transmit electrical signals from sensory receptors to effectors (muscles and glands) that control the activity of the effector organs Location: Brain, spinal cord, and nerves