M2L2: Types of animal tissues and functions Flashcards
single layer tightly packed, flattened cells with a disk
Simple Squamous Epithelium
Air sacs of the lungs, kidney glomeruli, lining of the heart, blood vessels, and lymphatic vessels.
Simple Squamous Epithelium
Allows passage of materials by diffusion and filtration.
Simple Squamous Epithelium
a single layer of tightly packed, cube - shaped cells.
Simple Cuboidal Epithelium
Kidney tubules, ducts and small glands, and a surface of ovary.
Simple Cuboidal Epithelium
Secretion and absorptio
Simple Cuboidal Epithelium
Consists of a single layer of elongated cells. Contains goblet cells that secretes mucus.
Simple Columnar Epith
Lines of digestive tract, gallbladder and excretory ducts of some glands.
Simple Columnar Epithelium
Absorption, enzyme secretion
Simple Columnar Epithelium
A tuft of cilia tops each columnar cell, except for goblet cells.
Pseudostratified Ciliated Columnar
Epithelium
Lines the bronchi, uterine tubes and some regions of the uterus.
Propels mucus or reproductive cells by ciliary action.
Pseudostratified Ciliated Columnar
Epithelium
Consists of many layers of cells.
Stratified Squamous
Epithelium
Location: Lines the esophagus, mouth, and vagina. Keratinized variety lines the surface of the skin.
Stratified Squamous
Epithelium
Function: Protects underlying tissues in areas subject to abrasion.
Stratified Squamous
Epithelium
- (Adipocytes) contain large fat droplets that push the nuclei close to the plasma membrane.
Adipose Tissue Cells
Location: Around kidneys, under the skin, in bones, within abdomen, and in breasts.
Adipose Tissue Cells
Function: Provides reserve fuel (lipids), insulates against heat loss, and supports and protects organs.
Adipose Tissue Cell
Consists numerous fibroblasts that produces collagenous and elastic fibers.
Loose Connective
Tissues
Location: Widely distributed under the epithelia of the human body.
Loose Connective
Tissues
Function: Wraps and cushions organs.
Loose Connective
Tissues
Consists largely of tightly packed collagenous fibers.
Fibrous Connective Tissue
Location: Dermis of the skin, sub - mucosa of the digestive tract, and fibrous capsules of organs and joints.
Fibrous Connective Tissues
Function: Provides structural strength.
Fibrous Connective Tissues
Bone matrix is deposited in concentric layers around osteonic canals.
Bone (Osseus) Tissue
Location: Bones
Bone (Osseus) Tissue
Function: Supports, protects, provides lever system for muscles to act on, stores calcium and fat, and forms blood cells.
Bone (Osseus) Tissue
Is a type of connective tissue. It consists of red blood cells-transport O2, white blood cells- fights infection and platelets suspended in an intercellular fluid (plasma), prevents clotting of blood.
Blood
Location: Within blood vessels.
Blood
Function: Transports oxygen, carbon dioxide, nutrients, wastes, hormones, minerals, vitamins and other substances.
Blood
Neurons in nervous tissue transmit electrical signals to other neurons, muscles, or glands.
Nervous Tissue
Location: Brain, spinal cord, and nerves.
Nervous Tissue
Function: Transmits electrical signals from sensory receptors to the spinal cord or brain, and from the spinal cord or brains to effectors (muscles and glands).
Nervous Tissue
Is composed of striated muscle fibers (cells) that are long and cylindrical and contain many peripheral nuclei.
Skeletal Muscle Tissue
Location: In skeletal muscles attached to bones.
Skeletal Muscle Tissue
Function: Voluntary movement, locomotion.
Skeletal Muscle Tissue
- Is formed of spindle - shaped cells, each containing a single centrally located nucleus. Cells are arranged closely. Smooth muscle tissue is not striated.
Smooth Muscle Tissue
Location: Mostly in the walls of hollow organs.
Smooth Muscle Tissue
Function: Moves substances or objects (foodstuffs, urine, a baby) along internal passageways; involuntary control.
Smooth Muscle Tissue
- Consists of branched striated cells, each containing a single nucleus and specialized cell junctions called intercalated disks that allow ions (action potentials) to move quickly from cell to cell.
Cardiac Muscle Tissue
Location: The walls of the heart.
Cardiac Muscle Tissue
Functions: As the wall of the heart contract, cardiac muscle tissue propels blood into the circulation; involuntary control.
Cardiac Muscle Tissue