The diagram shows muscles and bones in a human arm - Leaving Cert Biology - Question a - 2014
Question a
The diagram shows muscles and bones in a human arm.
(i) Name the muscles labelled A and B.
(ii) These two muscles are an antagonistic pair. What does this mean?
(... show full transcript
Worked Solution & Example Answer:The diagram shows muscles and bones in a human arm - Leaving Cert Biology - Question a - 2014
Step 1
Name the muscles labelled A and B.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Muscle A is the Biceps, and Muscle B is the Triceps.
Step 2
These two muscles are an antagonistic pair. What does this mean?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Antagonistic muscles are pairs of muscles that work in opposition to each other in order to facilitate movement. When one muscle contracts, the other muscle relaxes, allowing for coordinated motion.
Step 3
Name the structures that attach muscles to bones.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Tendons are the structures that connect muscles to bones.
Step 4
Describe the roles of the muscles A and B in raising the forearm.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
When raising the forearm, the Biceps (Muscle A) contracts to lift the forearm, while the Triceps (Muscle B) relaxes to allow this movement to occur smoothly.
Step 5
What general name is given to places in the body where two or more bones meet?
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Such places are called joints.
Step 6
1. Name one disorder of the human musculoskeletal system.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
One disorder of the human musculoskeletal system is arthritis.
Step 7
2. Suggest one cause and one treatment for the disorder referred to in (vi) 1. above.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
A common cause of arthritis is joint inflammation due to wear and tear. A typical treatment includes anti-inflammatory medications or physical therapy.
Join the Leaving Cert students using SimpleStudy...
