Kansas School Naturalist: Muscle Names

ESU / Liberal Arts & Sciences / Biology /

home
page

Index of Issues | Issues in Other Languages | Requests | Staff

Volume 42, Number 1, January 1996:
Muscle Names

Text-only version

ABOUT THIS ISSUE
- about KSN
- about the author

IN THIS ISSUE
- introduction
- how muscles are named
-- direction of muscle fibers
-- muscle size, location
-- location of the muscle attachment, origin and Insertion on bones
-- number of origins, relation of the muscle to the bone
-- figure 1
-- shape and type of action by the muscle
- muscles of the upper limb
-- upper arm muscles
-- forearm muscles
-- figure 3
- muscles of the lower limb
-- figure 4
-- figure 5
- muscles of the trunk
-- figure 6
-- figure 7
- muscle anatomy terms
- references

SLIDESHOW
View all images in this issue.

Muscle Names
by David Saunders

2. Upper Arm Muscles

g. biceps brachii (bi, L: "two"; ceps, L: "head") (brachi, L: "upper arm")
- origin on the scapula and humerus; insertion on the radius
- flexes the upper arm at the shoulder joint
- flexes the lower arm at the elbow joint
- rotates the arm as in turning a screwdriver

h. brachialis (brachi, L: "upper arm"; alis, L: "pertaining to")
- origin on the humerus; insertion of the ulna
- flexes the lower arm at the elbow joint

i. triceps brachii (tri, L: "three"; ceps, L: "head"; brachi, L: "upper arm")
- origin on the scapula and humerus; insertion on the ulna
- extends the arm at the elbow joint
- known as the "boxer's muscle" as it allows for a straight jab

Next: Forearm muscles