Term
| Where do muscles of facial expression originate? |
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Definition
| The muscles of facial expression originate on the surface of the skull. |
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Term
| What is the general function of the muscles of mastication? |
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Definition
| The muscles of mastication move the mandible at the temporomandibular joint during chewing. |
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Term
The general function(s) of the
extra-ocular muscles? |
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Definition
| The contraction of the extra-ocular muscles cause the eye to look up, look down, rotate laterally, rotate medially, roll and look up to the side, or roll and look down to the side. |
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Term
| What is the importance of the pharyngeal muscles? |
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Definition
| The pharyngeal muscles are important in the initiation of swallowing. |
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Term
| Damage to the external intercostal muscles would interfere with what important process? |
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Definition
| Damage to the external intercostal muscles would interfere with the process of breathing. |
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Term
| If someone hit you in your rectus abdominis muscle, how would your body position change? |
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Definition
| A blow to the rectus abdominis muscle would cause the muscle to contract forcefully, resulting in flexion of the torso. In other words, you would "Double over" |
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Term
| What is the function of the muscle of the pelvic diaphragm? |
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Definition
| The muscle of the pelvic diaphragm have the followoing functions (1)Support the organs of the pelvic cavity. (2)Flex the joints of the sacrum and coccyx, and (3) Control the movement of materials through the urethra and anus. |
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Term
| What is the function of the diaphragm? |
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Definition
| The diaphragm is a major muscle of respiration. |
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Term
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Definition
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Term
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Definition
| Pelvic floor / associated structures |
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Definition
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Definition
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Definition
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Definition
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Definition
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Definition
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Definition
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Definition
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Term
| Which muscle does not compress the abdomen? |
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Definition
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Term
| The muscle that arises from the pubis is the? |
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Definition
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Term
| The iliac crest is the origin of the? |
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Definition
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Term
| Which of the following describes the action of the digastric muscle? |
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Definition
| Elevates the larynx and depresses the mandible. |
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Term
| Which muscle has its insertion on the cartilages of the ribs? |
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Definition
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Term
| Some of the muscles of the tongue are innervated by the? |
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Definition
| Hypoglossal nerve (N XII) |
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Term
| The muscles of the pelvic floor do not? |
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Definition
| "Fine-tune" the movements of the thigh with regard to the pelvis |
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Term
| The axial muscles of the spine control the position of the? |
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Definition
| Head, neck, and vertebral column |
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Term
| The scalenes have their origin on the? |
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Definition
| Transverse and costal processes of cervical vertebrae |
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Term
| Which cranial nerve is most likely to have been damaged if a person cannot move the right eye to look laterally? |
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Definition
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Term
| During abdominal surgery, the surgeon makes a cut through the muscle directly to the right of the linea alba. The muscle that is being cut would be the ? |
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Definition
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Term
| Ryan hears a loud noise and quickly raises his eyes to look upward in the direction of the sound. To accomplish this action, he must use his ___ muscles? |
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Definition
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Term
| Which muscles plays no role in swallowing? |
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Definition
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Term
| Which of the following features are common to the muscles of mastication? |
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Definition
| They move the mandible at the temporomandibular joint. |
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Term
| The muscles of the vertebral column include many dorsal extensors but few ventral flexors. Why? |
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Definition
| In addition to using the flexor muscles, the trunk can be assisted to move forward by gravity. the bulk of the mass of the body is anterior to the vertebral column, making the movement toward the anterior easier to make. |
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Term
| What role do the muscles of the tongue play in swallowing? |
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Definition
| All of the extrinsic and muscles of the tongue are involved in different aspects of the swallowing process. These muscles control the position of the food bolus on the tongue and position it correctly for swallowing to be initiated. |
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Term
| What is the effect of contraction of the internal oblique muscle? |
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Definition
| The contraction of the internal oblique effects the following activities compresses the abdomen; depresses the ribs, and flexes bends to the side, or rotates the spine. |
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Term
| What are the functions of the anterior muscles of the neck? |
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Definition
| The anterior muscles of the neck control the position of the larynx, depress the mandible, tense the floor of the mouth, and provide a stable foundation for muscles of the tongue and pharynx. |
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Term
| What is the function of the diaphragm? Why is it included in the axial musculature? |
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Definition
| The diaphragm is a major muscle of respiration. It is included in the axial musculature because it is developmentally linked to the other muscles of the chest wall. |
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Term
| What muscles are involved in controlling the position of the head on the vertebral column? |
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Definition
| The muscles include the muscles of the erector spinae and multifidus groups, as well as the sternocleidomastoid. This muscles control the postion of the head, both maintaining posture involuntarily and moving the head voluntarily. |
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Term
| How do the muscles of the anal triangle control the functions of this area? |
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Definition
| The muscles of the anal triangle form the posterior aspect of the perineum, a structure that has boundaries established by the inferiior margins of the pelvis. A muscular sheet, the pelvic diaphragm, forms the foundation of the anal triangle and extends anteriorly superior to the urogenital diaphragm to attach anteriorly to the posterior aspects of the pubic symphysis. A sphincter muscle in this region surronds the opening to the anus. |
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Term
| Mary sees Jill coming toward her and immediately contracts her frontalis and procerus muscles. Is Mary glad to see Jill? How can you tell? |
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Definition
| The contraction of the frontalis and procerus muscles causes Mary to raise her eyebrows and wrinkle her forehead (frontalis), and to move her nose and change the postion and shape of the nostrils. the raising of the eyebrows and flaring of the nostrils show that she has some concern with this meeting. |
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