FINALS / Animal tissues

Arranged into discrete functional units called ___

Notable exception, lack true tissue-level organization

Study of tissues

Cover external surfaces for protection or line the internal surfaces of body cavities and vessels

Function as barriers and in secretion and absorption

Nerves are separated from the other nerves or from effectors organs by specialized junctions called _____

Often called a nerve fiber

Forms insulating sheath around many vertebrae peripheral nerves

Transmits electrical impulses from cell body to synaptic terminal

Release neurotransmitter chemicals into synapses when action potential arrives

• Found in the brain, spinal cord, and nerves.

• Consists of two basic kinds of cells: neurons and supporting cells called glial cells.

• Specialized for reception of stimuli and conduction of impulses from one region to another.

• Controls the animal’s body through transmission of electrical signals.

composed of long, unbranched muscle fibers that are actually composites of many individual muscle cells, giving these fibers their multinucleated appearance

has cross striations in its cells and has a single, centrally located nucleus

simplest and doesn’t have striations

Type of muscle: Smooth , skeletal, cardiac Nuclei: Control: Location:

• They differ by the presence or absence of striations or bands, the number and location of nuclei, whether they are voluntarily or involuntarily controlled, and their location within the body.

• The movement is initiated in response to nerve signals through ___

• Tissues that generally function for movement which consist of long cells called ____

• it circulates in the body through blood vessels transporting oxygen, carbon dioxide, nutrients, electrolytes, hormones, metabolic wastes, and practically any other substance that cells use or produce.

Classified as a type of connective tissue

• made up of cells called ____ have small nuclei localized at the cell edge.