Wordbank for 1-9: outer external oblique, gracilis, tibia, middle internal obliq

Question

Wordbank for 1-9: outer external oblique, gracilis, tibia, middle internal oblique, hypaxial, epxail, humerus, cranidorsally, masseters, caudodorsally, pubis, longitudinal, tibia, deep transversus abdominus, rectus abdominis, sternum, transverse, scapula, femur, ulna, clavotrapezius, spinotrapezius, biceps branchi, temporals, radius, pectoral, patella, one, two, three, four. glueteus, sartorius , ischeium, Illium, antagonistic, synergistic

6) The ___________________ are ________________ oriented muscles on either side of the linea alba and involved in flexion of the trunk. They originate on the _________________ and insert on costal cartilages and the ________________

7) Several muscles work ___________________ in abduction of the thigh. One, the ______________ is a large thick muscle that also flexes the shank, originates on a tuberosity of the _____________________ and the linea aspera, and inserts on the patella and the _____________________. The two __________________ muscles originate on sacral and caudal vertebra as well as the lateral surface of the illium, and insert into the proximal end of the ________________________.

8) Several muscles work antagonistically with the muscles described in 7, and instead are primarily involved in adduction of the thigh. The Gracilis in the more medial and caudal of the two, and originates on the fibrocartilaginous fusion of the ishium and the Illium and inserts on thin on the medial surface of the fibula   The Sartorius is more anterior and lateral of the two, originates on crest and ventral border of the illium and inserts on the bone and facia of the knee and the tibia

9) Mammals have two major muscles involved in closing the jaw. The _________________ insert into more lateral masseteric fossa on the mandible and are thought to play more a role in grinding actions, while ____________ bind to more medial located coronoid process on the mandible, and primary role is in hold the jaw closed. Which would be more developed in herbivores? _______________

Explanation / Answer

6) The rectus abdominis are longitudinal oriented muscles on either side of the linea alba and involved in flexion of the trunk. They originate on the pubis and insert on costal cartilages and the sternum.

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