Biology > STUDY GUIDE > Musculoskeletal system, with clicker questions (1) (All)

Musculoskeletal system, with clicker questions (1)

Document Content and Description Below

MUSCULOSKELETAL SYSTEM CHAPTER 48 OVERVIEW Muscle movement was a key innovation in the evolution of animals. Muscle tissue is composed of cells that contract. The three major muscle t... issues (smooth, cardiac, skeletal) have different structures and functions. Muscle forces and shape changes are transmitted to other parts of the body via the skeleton. The muscles and skeleton allow for diverse types of locomotion among animals. ANIMAL MOVEMENT Muscles generate movement by exerting force and causing shape changes. Muscle and skeletal systems work together to produce movement. Movement falls into two general categories: 1. Movement of the entire organism relative to its environment. Locomotion, movement of an animal under its own power, enables animals to seek food, shelter, etc. 2. Movement of one part of the animal relative to other parts. Movement not involved in locomotion include gill ventilation, beating of the heart, etc. MUSCLE CONTRACTION Vertebrate skeletal and cardiac muscle tissue is composed of long, slender cells called muscle fibers. Within each muscle fiber are many small strands called myofibrils, which may be striped or striated. Striped or striated myofibrils are made up of light and dark areas known as sarcomeres. • The sarcomere becomes shorter as the myofibril contracts and longer when the sarcomere relaxes. • Sarcomeres are made up of two types of proteins: actin (thin filaments) and myosin (thick filaments). .......................................................CONTINUED.......................................................... [Show More]

Last updated: 2 years ago

Preview 1 out of 38 pages

Buy Now

Instant download

We Accept:

We Accept
document-preview

Buy this document to get the full access instantly

Instant Download Access after purchase

Buy Now

Instant download

We Accept:

We Accept

Reviews( 0 )

$12.50

Buy Now

We Accept:

We Accept

Instant download

Can't find what you want? Try our AI powered Search

70
0

Document information


Connected school, study & course


About the document


Uploaded On

Apr 13, 2021

Number of pages

38

Written in

Seller


seller-icon
Anthony79

Member since 4 years

4 Documents Sold

Additional information

This document has been written for:

Uploaded

Apr 13, 2021

Downloads

 0

Views

 70

Document Keyword Tags

Recommended For You

Get more on STUDY GUIDE »

$12.50
What is Scholarfriends

In Scholarfriends, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
 FAQ
 Questions? Leave a message!

Follow us on
 Twitter

Copyright © Scholarfriends · High quality services·