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Get the Gizmo ready:
Activity A:
● Make sure the ANATOMY tab is selected and no
Muscle anatomy
circles are open.
Introduction: Your arm contains muscles, bones, and other connective tissue.
When muscles contract, they pull on the bones, causing them to move. In this
activity, you will learn what causes muscles to contract.
Question: What causes muscles to contract?
1. Observe: Turn on Hide muscles and Show labels.
A. Which bone connects the shoulder to
The Humerus
the forearm?
B. What are the names of the two
Radius and Ulna
forearm bones?
2. Observe: Note the white connective tissue along the elbow. Cartilage reduces
friction between bones. Examine the ligament.
A. Ligaments connect bones to Other bones
B. Turn off Hide muscles. Inspect the Muscles
tendons. Tendons join bones to 3. Explore: Click Play. Observe the muscles
as the forearm moves up and down.
A. When the arm flexes (bends upward), which
The biceps
muscle contracts?
B.Which muscle relaxes when the arm flexes? The triceps
C. When the arm extends (straightens), which
The triceps
muscle contracts?
D.Which muscle relaxes when the arm extends? Biceps
FOR MORE EXAMS
EMAIL:
https://www.cliffsnotes.com//study-notes/23440270
, FOR MORE EXAMS
EMAIL:
Get the Gizmo ready:
Activity A:
● Make sure the ANATOMY tab is selected and no
Muscle anatomy
circles are open.
Introduction: Your arm contains muscles, bones, and other connective tissue.
When muscles contract, they pull on the bones, causing them to move. In this
activity, you will learn what causes muscles to contract.
Question: What causes muscles to contract?
1. Observe: Turn on Hide muscles and Show labels.
A. Which bone connects the shoulder to
The Humerus
the forearm?
B. What are the names of the two
Radius and Ulna
forearm bones?
2. Observe: Note the white connective tissue along the elbow. Cartilage reduces
friction between bones. Examine the ligament.
A. Ligaments connect bones to Other bones
B. Turn off Hide muscles. Inspect the Muscles
tendons. Tendons join bones to 3. Explore: Click Play. Observe the muscles
as the forearm moves up and down.
A. When the arm flexes (bends upward), which
The biceps
muscle contracts?
B.Which muscle relaxes when the arm flexes? The triceps
C. When the arm extends (straightens), which
The triceps
muscle contracts?
D.Which muscle relaxes when the arm extends? Biceps
FOR MORE EXAMS
EMAIL:
