Anat-Muscl Prop/Name Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
properties of muscle tissue | contractility, excitability, extensibility, elasticity |
contractility | ability of a muscle to shorten with force (that is then used to generate action) |
excitability | capacity of a muscle to respond to a hormonal or nervous stimulus |
extensibility | muscle can be stretched to its normal resting length and beyond to a limited degree |
elasticity | ability of muscle to recoil to its original resting length after being stretched |
tendon | attaches muscle to bone |
aponeurosis | a very broad tendon. like a flat sheet |
aponeurosis locations | abdominal wall and back |
origin/head | muscle end attached to the more stationary of the two bones, undergoes the least amount of movement when the muscle contracts |
insertion | muscle end attached to the bone with the greatest movement |
belly | largest portion of the muscle between the origin and insertion |
agonist | muscle causing an action when it contracts |
prime mover | one muscle out of several doing the same movement that is most responsible for the action |
antagonist | a muscle working in opposition to an agonist |
synergists | muscles that work together to cause a movement, muscles that perform the same action |
fixators | stabilize joint(s) crossed by the prime mover |
pennate muscles | "feather-like in shape", have one or more tendons extending through their body and the muscle fibers are arranged at an oblique angle to the tendon |
unipennate muscle | muscle fibers attach to only one side of the central tendon |
bipennate muscle | muscle fibers attach to both sides of the central tendon |
multipennate muscle | multiple branches of the central tendon with fibers attaching on both sides |
parallel muscle | the muscle fibers run parallel to its long axis |
rectus | muscle fiber direction is vertical (straight up and down) |
convergent muscle | has widespread muscle fibers that converge on a common attachment site |
circular muscle/sphincter | the muscle fibers are concentrically arranged around an opening or recess |
quadratus | rectangular |
trapezius | trapezoidal (4 sides, none parallel) |
deltoid | triangular |
rhomboidal | rhombus |
major | muscle that is larger than another muscle |
minor | muscle that is smaller than another muscle |
biceps | two tendons/heads of origin |
triceps | three tendons/heads of origin |
fusiform | tapering at both ends with a thick belly |
digastric | two bellies |
Created by:
Jean-O
Popular Anatomy sets