a&p
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Frontalis | flat muscle that covers the forehead. Raises the eyebrows, gives a surprised look.
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| Orbicularis oculi | circular muscle around the eyes; causes blinking, winking squinting.
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| Orbicularis oris | circular muscle around the mouth; kissing muscle; closes & purses the lips.
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| Buccinator | horizontal check muscle; whistling muscle, helps w/ chewing, trumpeter’s muscle.
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| Zygomaticus | Extends the corner of the mouth to the cheekbone; smiling muscle.
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| Temporalis | Flat shaped muscle over temporal bone; closes the jaw
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| Masseter | cover the lateral part of the lower jaw; closes the jaw
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| Sternocleidomastoid | Extends along the side of the neck; extends obliquely from the sternum & clavicle to the mastoid process of the temporal bone. Flexes and rotates the head “praying muscle”
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| Trapezius | Large triangular muscle on the posterior neck and upper back & the shoulders. Extends the head back, shrugs the shoulders.
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| External Intercostals | intercostals spaces between the ribs. Enlarges the thoracic cavity
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| Internal intercostals | intercostals spaces between the ribs. Decreases thoracic breathing w/ forced exhalation.
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| Diaphragm | Dome shaped separates the thoracic and abdominal cavities; chief muscle of inspiration
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| Muscles of the abdominal wall | External oblique, rectus abdominis, internal oblique- Compresses the abdomen also flexes the vertebral column.
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| Trapezius | Muscles that move the Shoulder and Upper Arm
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| Serratus anterior | forms the upper sides of the chest wall below axilla. Aids in raising the arms.
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| Pectoralis major | large muscle that covers upper anterior chest. Adducts & flexes upper arm across the chest.
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| Latissimus dorsi | large broad muscle on mid & lower back. Adducts & rotates the arm behind the back; swimmers muscle.
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| Deltoid | thick muscle that covers the shoulder joint. Abducts arm in a scarecrow position.
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| Rotator cuff muscles | a group of 4 muscles attaching the humerus to the scapula. Rotates the arm at the shoulder.
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| Biceps Brachii | major muscle on the anterior surface of the upper arm. Flexes and supinates the forearm. Allows us to pose and “make a muscle”
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| Triceps Brachii | posterior surface of upper arm. Extends the forearm; boxers arm.
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| Brachialis | deep to the biceps brachii; flexes forearm.
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| Brachioradialis | muscles of the forearm; flexes forearm.
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| Gluteus maximus | largest most superficial of the gluteal muscles; extends the thigh, forms the buttocks, muscle for sitting & climbing stairs.
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| Gluteus medius | thick muscle partly behind and superior to the gluteus maximus.
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| Adductor longus & gracilis | medial inner thigh; adducts the thigh
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| Illiopsoas | located on anterior surface of groin. Flexes the thigh.
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| Quadriceps femoris | located on the anterior & lateral surface of the thigh. Extends the leg & inserts in the tibia.(vastus lateralis
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| Sartorius | long muscle that crosses obliquely over the anterior thigh; allows you to sit in crossed leg position
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| Hamstrings | (biceps femoris, semitendinosus) located on posterior surface of the thigh; these muscles attach to the tibia & fibula. Flexes the leg; extends the thigh.
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| Tibialis anterior | Anterior leg; dorsiflexes the foot, inversion of the foot
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| Gastrocnemius | Posterior surface of the leg & the muscle that forms the calf; plantar flexion of the foot; toe- dancer muscle
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| Soleus | posterior surface of the leg; plantar flexion of the foot.
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