Muscles Bible Flashcards
What is the action of the frontalis muscle?
- Raises eyebrows
- Wrinkles forehead
The frontalis muscle is involved in facial expressions.
What is the action of the occipitalis muscle?
- Pulls scalp backward
- Assists in raising the eyebrows
The occipitalis muscle works in conjunction with the frontalis.
Name the muscles involved in facial expression.
- Orbicularis oculi
- Orbicularis oris
- Zygomaticus major
- Zygomaticus minor
- Buccinator
These muscles are responsible for various facial movements.
What are the actions of the temporalis muscle?
- Elevates mandible
- Retracts mandible
The temporalis muscle plays a crucial role in chewing.
What is the primary action of the masseter muscle?
- Elevates mandible
- Protracts mandible
The masseter is one of the strongest muscles involved in chewing.
What are the actions of the sternocleidomastoid muscle?
- Rotates head
- Flexes neck
This muscle is key for head movement.
What is the action of the diaphragm?
- Responsible for inhalation
The diaphragm is the primary muscle of respiration.
Name the muscles classified as respiratory muscles.
- Diaphragm
- External intercostals
- Internal intercostals
These muscles assist in the breathing process.
What are the actions of the external abdominal obliques?
- Compresses abdomen
- Rotates trunk
These muscles are important for trunk stability.
What is the primary action of the rectus abdominus?
- Flexes vertebral column
- Compresses abdomen
The rectus abdominus is commonly referred to as the ‘six-pack’ muscle.
What is the role of the erector spinae muscle?
- Extends vertebral column
- Stabilizes spine
This muscle group is essential for maintaining posture.
Name the muscles acting on the shoulder.
- Pectoralis minor
- Serratus anterior
- Trapezius
- Rhomboid major
- Rhomboid minor
These muscles facilitate shoulder movement and stability.
What are the actions of the pectoralis major muscle?
- Adducts arm
- Medially rotates arm
The pectoralis major is a key muscle for arm movement.
What is the primary action of the deltoid muscle?
- Abducts arm
- Flexes and extends arm
The deltoid is crucial for shoulder movement.
Name the rotator cuff muscles.
- Supraspinatus
- Infraspinatus
- Teres minor
- Subscapularis
These muscles stabilize the shoulder joint.
What are the actions of the biceps brachii?
Long: Flexes elbow
Short: Assists in shoulder flexion
Distal: Supinates forearm
The biceps brachii is a prominent muscle in the upper arm.
What is the primary action of the iliacus muscle?
- Flexes hip
The iliacus works in conjunction with the psoas major.
Name the muscles acting on the knee.
- Sartorius
- Rectus femoris
- Vastus lateralis
- Vastus medialis
- Vastus intermedius
- Biceps femoris
- Semitendinosus
- Semimembranosus
These muscles are key for knee movement and stability.
What are the actions of the gastrocnemius muscle?
- Plantarflexes foot
- Flexes knee
The gastrocnemius is a major muscle of the calf.
Fill in the blank: The _______ muscle is responsible for dorsiflexion of the foot.
Tibialis anterior
The tibialis anterior is crucial for lifting the foot.
