HS I 2.02 Muscular System Structures Part 2

HS I 2.02 Muscular System Structures Part 2

Muscles of the Upper Extremities

Trapezius

• upper back

• supports the arm and helps with the scapula

Deltoid

• helps lift the upper arm

• site for injections (COVID)

Biceps brachii

• on the anterior of the upper arm

• lifts the forearm

Triceps brachii

• posterior of upper arm

• straightens the arm

Brachioradialis

• flexes the forearm

• pronation and supination

Multiple Choice

This upper back muscle supports the arm and helps with the scapula.

• triceps brachii

• deltoid

• brachioradialis

• trapezius

Multiple Choice

This muscle is located on the anterior of the upper arm.

• biceps brachii

• triceps brachii

• brachioradialis

• deltoid

Multiple Choice

What muscle is located on the posterior arm and works to straighten the arm?

• brachioradialis

• deltoid

• trapezius

• triceps brachii

Multiple Choice

This muscle flexes the forearm and allows for pronation and supination.

• biceps brachii

• trapezius

• brachioradialis

• deltoid

Muscles of the Lower Extremities

Gluteus medius

• sits on the outer surface of the ilium

• helps with hip movement

Gluteus maximus

• buttocks

• helps with several hip movements

Vastus lateralis

• side of the thigh

• helps extend the knee and move the leg forward

Gastrocnemius

• don't confuse this with the stomach (gastric)!

• calf muscle

• works with the soleus

• moves the knee by bending

Soleus

• under the gastrocnemius

• runs from the knee to the heel

• helps with standing and walking

Sartorius

• runs from the hip, across the thigh to the medial knee

• longest muscle in the human body

• crossing your legs is one function

Rectus femoris

• part of the quads

• long thin muscle on the femur

• helps with knee extension and hip flexion

Tibialis Anterior

• on the front of the tibia

• dorsiflex and inverts the foot

Multiple Choice

This muscle is located on the side of the thigh and helps extend the knee and move the leg forward.

• Gluteus maximus

• Vastus lateralis

• Gastrocnemius

• Soleus

Multiple Choice

This muscle sits on the outer surface of the ilium and helps with hip movement.

• Gluteus medius

• Gluteus maximus

• Gastrocnemius

• Vastus lateralis

Multiple Choice

This long thin muscle is located on the femur and is part of the quads.

• Rectus femoris

• Gastrocnemius

• Sartorius

• Soleus

Multiple Choice

What muscle runs from the hip across the thigh to the medial knee?

• Gastrocnemius

• Soleus

• Sartorius

• Gluteus medius

Multiple Choice

What muscle is located on the front of the tibia?

• Sartorius

• Gluteus maximus

• Soleus

• Tibialis Anterior

Multiple Choice

This muscle is also known as the calf muscle.

• Gluteus maximus

• Gluteus medius

• Gastrocnemius

• Soleus

Multiple Choice

This muscle makes up the largest portion of the buttocks.

• Gastrocnemius

• Gluteus medius

• Gluteus maximus

• Vastus lateralis