A&P I Major Skeletal Muscles by Region
36 flashcards covering A&P I Major Skeletal Muscles by Region for the ANATOMY-PHYSIOLOGY-1 A&P I Systems section.
The topic of major skeletal muscles by region encompasses the identification and understanding of the key skeletal muscles found in the human body, categorized by anatomical regions such as the head, neck, trunk, and limbs. This content is outlined in the curriculum standards set by the American Association of Colleges of Nursing (AACN) and is essential for a foundational understanding of human anatomy, particularly in the context of Anatomy and Physiology I courses.
In practice exams and competency assessments, questions often require students to identify specific muscles based on diagrams or to match muscle functions with their anatomical locations. Common traps include confusing muscles with similar names or functions, as well as overlooking the role of synergistic and antagonistic muscle groups. A frequent pitfall is not paying attention to the origin and insertion points of muscles, which can lead to errors in identifying their actions. Remember to focus on these details, as they are crucial for practical applications in clinical settings.
Terms (36)
- 01
What are the major muscles of the head and neck region?
The major muscles include the sternocleidomastoid, trapezius, and muscles of facial expression such as the orbicularis oculi and orbicularis oris (Marieb, Anatomy and Physiology).
- 02
Which muscles are primarily responsible for shoulder movement?
The primary muscles include the deltoid, rotator cuff muscles (supraspinatus, infraspinatus, teres minor, subscapularis), and the trapezius (Tortora, Anatomy and Physiology).
- 03
What muscles are involved in elbow flexion?
The primary muscles for elbow flexion are the biceps brachii, brachialis, and brachioradialis (Saladin, Anatomy and Physiology).
- 04
What is the role of the diaphragm in respiration?
The diaphragm contracts to increase thoracic cavity volume, facilitating inhalation by drawing air into the lungs (Marieb, Anatomy and Physiology).
- 05
Which muscles are involved in hip extension?
The primary muscles involved in hip extension are the gluteus maximus and the hamstrings (Tortora, Anatomy and Physiology).
- 06
What are the major muscles of the back?
Major muscles of the back include the latissimus dorsi, trapezius, rhomboids, and erector spinae (Saladin, Anatomy and Physiology).
- 07
How do the quadriceps contribute to knee movement?
The quadriceps group, including the rectus femoris and vastus muscles, extends the knee joint (Marieb, Anatomy and Physiology).
- 08
Which muscles are responsible for plantar flexion of the foot?
The primary muscles responsible for plantar flexion are the gastrocnemius and soleus (Tortora, Anatomy and Physiology).
- 09
What is the function of the abdominal muscles?
The abdominal muscles, including the rectus abdominis and obliques, support the trunk, assist in breathing, and help with movements like twisting (Saladin, Anatomy and Physiology).
- 10
Which muscles are involved in shoulder abduction?
The deltoid and supraspinatus muscles are primarily responsible for shoulder abduction (Marieb, Anatomy and Physiology).
- 11
What muscles are involved in wrist flexion?
The primary muscles involved in wrist flexion include the flexor carpi radialis and flexor carpi ulnaris (Tortora, Anatomy and Physiology).
- 12
How often should skeletal muscles be exercised for optimal health?
Skeletal muscles should be exercised at least 2-3 times per week for optimal health benefits (Saladin, Anatomy and Physiology).
- 13
What is the role of the rotator cuff muscles?
The rotator cuff muscles stabilize the shoulder joint and allow for a wide range of shoulder movements (Marieb, Anatomy and Physiology).
- 14
Which muscles are primarily responsible for hip flexion?
The iliopsoas group, including the psoas major and iliacus, are primarily responsible for hip flexion (Tortora, Anatomy and Physiology).
- 15
What is the function of the gluteus medius?
The gluteus medius is responsible for hip abduction and stabilization of the pelvis during walking (Saladin, Anatomy and Physiology).
- 16
What muscles are involved in neck rotation?
The sternocleidomastoid and splenius muscles are involved in neck rotation (Marieb, Anatomy and Physiology).
- 17
Which muscles are responsible for the movement of the jaw?
The primary muscles responsible for jaw movement include the masseter and temporalis (Tortora, Anatomy and Physiology).
- 18
What is the function of the external oblique muscle?
The external oblique muscle assists in trunk rotation and lateral flexion, as well as compressing the abdominal cavity (Saladin, Anatomy and Physiology).
- 19
Which muscles are involved in the action of sitting up from a supine position?
The rectus abdominis and hip flexors are primarily involved in sitting up from a supine position (Marieb, Anatomy and Physiology).
- 20
What is the primary action of the biceps brachii?
The primary action of the biceps brachii is elbow flexion and forearm supination (Tortora, Anatomy and Physiology).
- 21
Which muscles are involved in the action of shrugging the shoulders?
The trapezius and levator scapulae muscles are involved in shrugging the shoulders (Saladin, Anatomy and Physiology).
- 22
What is the role of the pectoralis major?
The pectoralis major is responsible for shoulder flexion, adduction, and medial rotation of the arm (Marieb, Anatomy and Physiology).
- 23
How do the hamstrings function during knee flexion?
The hamstrings, including the biceps femoris, semitendinosus, and semimembranosus, flex the knee joint (Tortora, Anatomy and Physiology).
- 24
What is the primary function of the tibialis anterior?
The primary function of the tibialis anterior is dorsiflexion of the foot (Saladin, Anatomy and Physiology).
- 25
Which muscles are involved in the action of kicking a ball?
The quadriceps are primarily involved in extending the knee during the action of kicking a ball (Marieb, Anatomy and Physiology).
- 26
What is the function of the serratus anterior?
The serratus anterior is responsible for protracting and stabilizing the scapula against the thoracic wall (Tortora, Anatomy and Physiology).
- 27
Which muscles are primarily responsible for trunk flexion?
The rectus abdominis and external obliques are primarily responsible for trunk flexion (Saladin, Anatomy and Physiology).
- 28
What is the role of the gastrocnemius during walking?
The gastrocnemius plays a key role in plantar flexion, aiding in push-off during walking (Marieb, Anatomy and Physiology).
- 29
Which muscles are involved in lateral rotation of the hip?
The gluteus maximus and the deep external rotators, such as the piriformis, are involved in lateral rotation of the hip (Tortora, Anatomy and Physiology).
- 30
What is the primary action of the rectus femoris?
The primary action of the rectus femoris is knee extension and hip flexion (Saladin, Anatomy and Physiology).
- 31
Which muscles are involved in the action of raising the arms overhead?
The deltoid and trapezius muscles are primarily involved in raising the arms overhead (Marieb, Anatomy and Physiology).
- 32
What is the function of the flexor digitorum superficialis?
The flexor digitorum superficialis flexes the middle phalanges of the fingers, aiding in gripping (Tortora, Anatomy and Physiology).
- 33
Which muscles are responsible for the movement of the foot during running?
The gastrocnemius, soleus, and tibialis anterior are responsible for foot movement during running (Saladin, Anatomy and Physiology).
- 34
What is the role of the adductor muscles in the thigh?
The adductor muscles, including the adductor longus and adductor magnus, are responsible for adducting the thigh (Marieb, Anatomy and Physiology).
- 35
Which muscles are involved in the action of turning the head to the side?
The sternocleidomastoid and splenius capitis muscles are involved in turning the head to the side (Tortora, Anatomy and Physiology).
- 36
What is the primary function of the iliopsoas muscle?
The iliopsoas muscle is primarily responsible for hip flexion (Saladin, Anatomy and Physiology).