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Solnce55 [7]
3 years ago
14

Answer these questions please

Biology
1 answer:
kap26 [50]3 years ago
5 0

Answer:

The labels are in the attached image.

Explanation:

In a flexed arm, the biceps brachii contract and the attached tendon pulls radius and ulna upwards. During flexion, the triceps brachii relax.

Upper Arm Muscles and Tendons:

  • The biceps brachii, a two headed muscle, joins the upper arm bone, humerus through a tendon.
  • Most of the muscle mass of biceps brachii is located anterior to the humerus.
  • The triceps, a three headed muscle, possesses three attachments:
  1. The long head originates from the scapula.
  2. The lateral head from the proximal region of the humerus
  3. The medial head from the distal region of the humerus.
  • All three converge into one tendon which attaches to the ulna.

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