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Human anatomy MUSCULAR SYSTEM. dr. Dea Amanda. Program Studi Ilmu Keperawatan Unitri Malang. The muscular system is made up of. muscles & tendons. Tendon vs Ligamen. Why do I need tendons?. Tendons attach my muscles to my bone helping my body move.. .
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Human anatomyMUSCULAR SYSTEM dr. Dea Amanda Program Studi Ilmu Keperawatan Unitri Malang
The muscular system is made up of.. muscles & tendons
Why do I need tendons? Tendons attach my muscles to my bone helping my body move.. Feel your tendon right above your heel in the back of your leg.. This is the thickest tendon in your body..
Fungsi Otot.. • All types of body movement
Fungsi Otot.. • Penopang tubuh • & • maintain posture
Fungsi Otot.. • Produksi panas
How do muscles work? Muscles can't push, They pull.. Muscles often work in pairs, so that they can pull in different / opposite directions
Ciri2 Otot.. Kontraktilitasserabut otot (=muscle cell/muscle fiber) contracts Ekstensibilitasability to stretch me>i pjg otot (saat relax) Elastisitas dpt kembali ke ukuran semula stlh contracts /stretch
Ways to Strengthen the Muscular System • Exercise at least 3 times a week • Eat well-balanced meals (protein) • Can you think of more ways?
Klasifikasi.. • Struktural: • Skeletal muscle • Cardiac muscle • Smooth muscle • Fungsional: • Volunter : 1 • Involunter : 2,3
Direction of Muscle Fibers.. Relative to the Midline • RECTUS = parallel to the midline • RectusAbdominus • TRANSVERSUS = perpendicular to midline • TransversusAbdominus • OBLIQUE = diagonal to midline • Obliqus external • Obliqus internal
Location.. Structure near which muscle is found • FRONTALIS = near FRONTAL bone • OCCIPITALIS = near OCCIPITAL bone
Size.. Relative Size of Muscle • MAXIMUS = largest • Gluteus Maximus • MEDIUS = middle • Gluteus Medius • MINIMUS = smallest • Gluteus Minimus
Size.. Relative Size of Muscle • LONGUS = longest • Fibularis Longus • BREVIS = short • Fibularis Brevis • TERTIUS = shortest • Fibularis Tertius
Number of Origins.. Number of tendons of origin • BICEPS = Two • Biceps Brachii • TRICEPS = Three • Triceps Brachii
Number of Origins.. • Number of tendons of origin • QUADRICEPS = Four • Quadriceps Femoris
Shape.. Relative Shape of the Muscle • DELTOID = triangular shape Δ • TRAPEZIUS = trapezoid shape • SERRATUS = saw-toothed ♒ • RHOMBOIDEUS = rhomboid shape • TERES = round ○
Origin & Insertion.. • Origo: attachment to an immoveable bone • Insersio: attachment to a movable bone • CORACOBRACHIALIS= attaches to the proc. Coracoideus & humerus
Frontalis: elevate eyebrows Orbicularis Oculi: close eyelid Zygomaticus: draw angle of lip upward Buccinator: draws cheeks against teeth Orbicularis Oris: closes mouth Platysma: draws lower lip down & back Cranial Aponeurosis: connects frontalis to occipitalis Temporalis: elevates mandible Occipitalis: draws scalp back Masseter: elevates mandible Sternocleidomastoid: Flexes head Draws head toward shoulder Head & Neck Muscles
Muscles of Mastication • Masseter: elevates mandible • Temporalis: elevates mandible • Medial pterygoid: elevates mandible • Lateral pterygoid: depresses mandible
Frowning Muscles Frontalis Orbicularis Oris Depressor Anguli Oris Depressor Labii Inferioris Mentalis Platysma Key Muscles of Facial Expression
Key Muscles of Facial Expression • Smiling Muscles • Orbicularis Oculi • Nasalis • Levator Labii Superioris • Levator Anguli Superioris • Zygomaticus
to be continued..