Nervous Muscle Tissue cc: webtreats -

Nervous & Muscle Tissue

cc: webtreats - https://www.flickr.com/photos/44071822@N08

Nervous Tissue1. Main component of the

nervous system2. Brain, spinal cord, and nerves

cc: illuminaut - https://www.flickr.com/photos/21611336@N00

Neurons1. highly specialized2. generate and conduct nerve

impulses

cc: juliendn - https://www.flickr.com/photos/11689412@N02

Muscle Tissue• Well vascularized• 3 types• Skeletal, cardiac, smooth

cc: EUSKALANATO - https://www.flickr.com/photos/17657816@N05

Skeletal1. As they contract, they pull on

bones or skin, causing body movements

2. Skeletal muscle cells are also called muscle fibers

cc: Great Beyond - https://www.flickr.com/photos/26104563@N00

Skeletal• Striated, long, & cylindrical

appearance

cc: Rob Swatski - https://www.flickr.com/photos/50946274@N02

Cardiac Muscle1. Found only in heart2. Also striated, but different

from skeletal

cc: P!XELTREE - https://www.flickr.com/photos/46391909@N08

Cardiac1. Uninucleate2. Branching cells that fit together

tightly and unique junctions called intercalated discs

cc: Chocolate Geek - https://www.flickr.com/photos/75632859@N00

Smooth1. No visible striations2. spindle shaped3. One centrally located nucleus

cc: milena mihaylova - https://www.flickr.com/photos/25758374@N00

Smooth1. walls of hollow organs other

than the heart,2. alternately contracts and relaxes3. involuntary control

cc: VinothChandar - https://www.flickr.com/photos/44345361@N06