BIOL301 Lecture Notes - Lecture 4: Splenius Cervicis Muscle, Splenius Capitis Muscle, Orbicularis Oculi Muscle
18 Nov 2016
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Anterior neck muscles (don"t need to label: suprahyoid, mylohyoid: elevates hyoid bone and oor of mouth, stylohyoid: elevates and retracts tongue, digastric: depress mandible, infrahyoid, thyrohyoid, omohyoid, sternothyroid, sternohyoid, pharyngeal constrictor muscles: used in swallowing. Breathing muscles: external intercostals: elevate ribs/expand chest (inspiration, internal intercostals: depress ribs/compress chest (active expiration, diaphragm: circular, attens/expands thoracic cavity (inspiration) Abdominal muscles: external oblique: lateral exion & rotation (super cial, internal oblique: lateral exion & rotation (intermediate, rectus abdominis: exion & rotation (intermediate) Linea alba: tendon sheath through midline of abdomen: transversus abdominis: compression (deep) Movement of the forearm: flexion, biceps brachii, brachialis, brachioradialis, extension, triceps brachii, anconeus. Super cial forearm muscles: flexion, flexor digitorum super cialis, flexor carpis ulnaris, flexor carpi radialis, palmeris longus, extension, extensor digitorum, extensor carpi ulnaris, extensor carpi radialis brevis, extensor carpi radialis longus. Biol 301 - skeletal muscles: pronation, pronator teres.
