Question

question 9 (mandatory) (0.5 points) the biceps brachii muscle inserts at __ ; its main action is and . a) radial tuberosity; flexion of elbow and supination of forearm b) palmar aponeurosis; tenses skin of palm c) olecranon of ulna; extension of forearm d) distal phalanges of fingers; extension of fingers question 10 (mandatory) (0.5 points) the rectus femoris muscle inserts at and ; its main actions are and __. a) tibial tuberosity and patella; extends knee and flexes thigh b) greater trochanter and linea aspera; extends and stabilizes knee c) condyle of tibia and condyle of femur; extends thigh and flexes knee d) sacrum and coccyx; extends and rotates thigh

Explanation:

The biceps brachii inserts at the radial tuberosity and performs elbow - flexion and forearm - supination. The rectus femoris inserts at the tibial tuberosity (via the patellar tendon) and patella, and its main actions include knee - extension and thigh - flexion.

Answer:

Question 9: A. radial tuberosity; flexion of elbow and supination of forearm
Question 10: A. tibial tuberosity and patella; extends knee and flexes thigh