× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Biology-Related Homework Help Anatomy and Physiology Kinesiology
New Topic  
escoba escoba
wrote...
Posts: 820
Rep: 0 0
6 years ago
Your patient attempts to strengthen his triceps by positioning his shoulder at the end of range of shoulder and elbow extension. He reports weakness and inability to extend his shoulder more in this position.
 
  His report may best be explained by which of the following?
  a. Active insufficiency of the biceps
  b. Active insufficiency of the triceps
  c. Passive insufficiency of the biceps
  d. Passive insufficiency of the triceps
Read 181 times
2 Replies

Related Topics

Replies
wrote...
#1
6 years ago
ANS: B
In a position of full shoulder and elbow extension, the triceps would be trying to contract when the
sarcomeres are already maximally shortened and there is maximal overlap between the
myofilaments. This position could also produce passive insufficiency of the biceps, but the
patient's complaint of weakness would indicate that the issue is more focused on an inability to
produce more tension rather than lengthen the antagonist muscle.
escoba Author
wrote...
#2
6 years ago
Smiling Face with Halo Nice
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1326 People Browsing
 111 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 281
  
 3012
  
 5683