MUSCULAR SYSTEM Questions with correct 100% answers 2024

What does the muscular system includes? - correct answer It includes the skeletal muscle tissue TRUE OR FALSE Muscles shorten during neural control, causing soft tissue and bony structures to move. - correct answer TRUE TRUE OR FALSE Each muscle has two endings that attach to the other structures (such as bone or soft tissue) and they are categorized according to their role in movement. - correct answer TRUE What is Origin? - correct answer The muscle end that is attached to the least movable structure. ( AKA fixed point) What is Insertion? - correct answer The muscle end that is attached to the more movable structure. (AKA movable point) TRUE OR FALSE In some bones, moving point could be at either end. - correct answer TRUE What is action? - correct answer Movement that is made when muscle fibers contract. TRUE OR FALSE Generally, the insertion of the bone move toward the origin when the muscle is contracted. - correct answer TRUE What are the fourt types of muscles of mastication? - correct answer Elevation Depression Retraction Protrusion Lateral Deviation What is the function of the Elevation muscle? - correct answer Close the mouth What is the function of the Depression muscle? - correct answer Open the mouth What is the function of the Retraction muscle? - correct answer Retract or pull the mandible backwards What is the function of the Protrusion muscle? - correct answer Protracting or moving the mandible forward. What in the function of the Lateral deviation? - correct answer Move mandible sideways TRUE OR FALSE These muscles work with the TMJ to accomplish movement of the mandible - correct answer TRUE The muscles of mastication are innervated by which of the cranial nerve ? - correct answer Fifth Cranial nerve/ Trigeminal nerve. What artery supply blood to the muscles of mastication? - correct answer The maxillary artery. What are the four muscle of mastication? - correct answer Masseter Temporalis Medial Pterygoid Lateral Pterygoid What muscle is the strongest, it elevates the mandible causing it to close? - correct answer Masseter Muscle Where is the origin end of the Masseter muscle superficial head? - correct answer In the anterior two thirds of the lower border of the zygomatic arch Where is the insertion end of Masseeter muscle superficial head? - correct answer In the angle of mandible. Where is the origin end of the Masseter muscle deep head? - correct answer In the posterior third of the lower border of the zygomatic arch Where is the insertion end of the masseter muscle deep head? - correct answer In the ramus of mandible Name the broad, thick, rectangular muscle on each side of the face. Anterior to the parotid salivary gland. - correct answer Masseter muscle How can you palpate the masseter muscle in someone? - correct answer By asking them to clench their teeth together. What muscle elevates the mandible if the entire muscle contracts. If only posterior fibers are contracted the muscle moves the mandible backwards (retrude ) - correct answer The temporalis muscle Name the broad, fan shaped muscle on each side of the head. - correct answer Temporalis muscle Where is the origin of the temporalis muscle? - correct answer Temporal fossa Where is the insertion of the temporalis muscle? - correct answer Coronoid process of mandible What third muscle helps elevate the mandible and closes the mouth? - correct answer Medial Pterygoid muscle Where is the origin of the Medial Pterygoid muscle? (Internal Pterygoid) - correct answer Pterygoid fossa of sphenoid bone Where is the insertion of the Medial Pterygoid muscle? - correct answer Angle of mandible What muscle is in the interior and has a opposite insertion from the masseter muscle? - correct answer Medial Pterygoid muscle. What muscle protrudes and depresses the mandible when muscles work together; lateral deviation of the mandible when one muscle contract. - correct answer Lateral Pterygoid muscle ( External pterygoid) What are the 2 origins of the lateral pterygoid muscle? - correct answer - Superior head; Greater wing of the sphenoid bone - Inferior head; Lateral Pterygoid plate from the sphenoid bone. What muscle assist in the action of mastication and swallowing ? - correct answer Hyoid Muscle What bone articulates with no other bone and is connected by muscles and ligaments only? - correct answer Hyoid bone Hyoid muscle are divided into two muscles what are they? - correct answer - Suprahyoid muscle: above the hyoid bone - Infrahyoid muscle : below the hyoid bone What muscles are part of the Suprahyoid group? - correct answer -Digastric muscle -Mylohyoid muscle -Geniohyoid muscle -Stylohyoid muscle What suprahyoid muscle retrudes and depresses the mandible? - correct answer Digastric muscle What is the origin of the Digastric muscle? - correct answer Origins at the digastric notch just medial the mastoid process behind the ear. Attaches to the hyoid bone What is the function of the Mylohyoid muscle? - correct answer To depress the mandible What is the Origin of the Mylohyoid muscle? - correct answer Origin at the mylohyoid line of the mandible inserting into the hyoid bone, What is the function of the Stylohyoid muscle? - correct answer To pull the hyoid bone back and up Where is the origin of the stylohyoid muscle? - correct answer Origin at the stylohyoid process and inserts into the posterior part o the hyoid bone. What is the function of the Geniohyoid Muscle? - correct answer Depresses mandible; elevates hyoid. Where is the Origin of the Geniohyoid muscle? - correct answer Origin at the genial turbercles and inserts into the hyoid bone by the midline. What muscles belong to the Infrahyoid Group? - correct answer Omohyoid Muscle Sternohyoid muscle Sternothyoid Muscle Thyrohyoid Muscle TRUE OR FALSE Most of the infrahyoid muscles depress the hyoid bone? - correct answer TRUE Where is the origin and insertion of the Omohyoid muscle? - correct answer Origin is the upper part of the sternum and inserts on the sid eof the larynx not easily seen because the sternohyoid muscle lies superficial to it What is the Origin and Insertion of the Sternothyroid muscle? - correct answer Origin is the sternum and inserts into the hyoid bone What is the Origin and Insertion of the Sternothyroid Muscle? - correct answer Origin is the upper part of the sternum and inserts on the side of the larynx What is the Origin and Insertion of the Thyrohyoid muscle - correct answer Origin is from the side of the larynx and inserts into the hyoid bone. What is the function of the Thyrohyoid muscle? - correct answer Raise thyroid cartilage and larynx What are the 3 muscles of the neck? - correct answer Sternocleidomastoid Trapezius Platysma What are the function of the muscles of the head? - correct answer Move head back and foward Tilt and rotate Rotate and elevate the shoulders raise the chin What devides the muscles of the tongue? - correct answer The medium septum What correspoinds with the medium septum ? - correct answer Median lingual sulcus a midline depression on the tongues dorsal surface Muscles of the tongue are devided into 2 groups - correct answer Intrinsic and extrinsic The muscles of the tongue are innvervated by what?" - correct answer Twelfth cranial, or hypoglossal nerve. What are the 4 pairs of intrinsic muscles? - correct answer Superior longitudinal Transverse Vertical Inferior longitudinalTwefth cra What are the 3 muscles of the entrinsic tongue? - correct answer Styglossus Genioglossu Hyoglossus What are the muscles of the pharynx? - correct answer Stylopharyngeus Pharyngeal constrictor Soft palate muscles The stylopharyngeus muscle is innervated by what - correct answer 9 cranial or glossopharyngeal nerve The pharyngeal muscle is innervated by what? - correct answer Pharyngeal plexus The muscles of the soft palate are innervated by what? - correct answer The pharyngeal plexus and the mandibular nerve