muscles

Question 1

Quadriceps:

Answer 1

Located at the front of the thigh, responsible for extending the knee (e.g., kicking a ball).

Question 2

Hamstrings:

Answer 2

Located at the back of the thigh, responsible for flexing the knee (e.g., bending the knee while running).

Question 3

Gastrocnemius and Soleus :

Answer 3

(Calf Muscles)
Involved in plantarflexion of the foot (e.g., standing on tiptoe).

Question 4

Pectoralis Major

Answer 4

Responsible for movements of the shoulder joint, such as pushing and pulling. (Chest Muscle):

Question 5

Latissimus Dorsi

Answer 5

Facilitates movements like pulling and adduction of the arm (e.g., rowing). (Back Muscle):

Question 6

Deltoids:

Answer 6

Shoulder muscles involved in lifting the arm in all directions.

Question 7

arm bones (upper)

Answer 7

The biceps are involved in flexing the elbow, while the triceps extend the elbow (e.g., during bicep curls or push-ups). biceps brachii, brachialis, (triceps brachii).

Question 8

muscle actions

Answer 8

Isometric Contraction: Muscle contracts but does not change length (e.g., holding a plank position).
Isotonic Contraction: Muscle changes length during contraction, leading to movement (e.g., lifting weights).
Concentric Contraction: Muscle shortens (e.g., biceps contracting during a curl).
Eccentric Contraction: Muscle lengthens under tension (e.g., lowering a dumbbell in a bicep curl).