Details Title: A&P Pam Puckett Lab Test 2 Description: muscles Total Flash Cards: 53 Created: 07/04/2009 08:22:34		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Anatomy Flashcards
Cards in this set: Term insertion Definition the moveable end of a skeletal muscle Term origin Definition the immoveable end of a skeletal muscle Term prime mover Definition responsible for most of a movement Term synergist Definition aid prime movers Term antagonists Definition smooth movements depend upon _______ giving way to the actions of prime movers Term tendons Definition muscles attach to bone or to other muscles by ______ Term tendons Definition may be cords or thin sheets Term groups Definition skeletal muscles work in _____ Term frontalis Definition muscle that raises eyebrows, wrinkles forehead in the front of the head (forehead area) Term occipitalis Definition muscle that raises eyebrows, wrinkles forehead in back of the head Term epicranial aponeuroses tendon Definition connects the frontalis and occipitalis (gray part) Term orbicularis oculi Definition circle around the eye involved in winking Term orbicularis oris Definition circle around the mouth involved in kissing Term zygomaticus Definition muscle that follows the zygomatic bone on cheek involved in smiling Term buccinator Definition deep to zygomaticus, compresses cheeks inward as in blowing Term masseter Definition a big, lower, lateral facial muscle that elevates the mandible in chewing Term temporalis Definition a synergist that elevates the mandible in chewing located on the side of the head above the temporal bone Term sternocleidomastoid Definition big muscle that sticks out on neck (forms a V shape) (together- head flexion; separate- rotate and tilt head) Term trapezius Definition shaped like a trapezoid (kite) on the back--it raises scapula andn various other scapular movements Term rhomboideus major Definition underneath trapezius--raises and adducts scapula (shows only on torso model) (below trapezius and above latissimus dorsi--deep) Term serratus anterior Definition forms triangles underneath armpit and pulls scapula downward and anterior (boxer's muscle) Term pectoralis major Definition "front boob area" involved in arm flexion and adduction Term teres major Definition a synergist that aids in arm extension and adduction--below armpit Term latissimus dorsi Definition goes straight across the back involved in arm extension and adduction (swimmer's muscle) Term deltoid Definition on top of shoulder involved in arm abduction Term supraspinatus Definition synergist mover aids in arm abduction (above the spina of scapula and below the deltoid) Term infraspinatus Definition below the supraspinatus muscle --it rotates the arm laterally Term teres minor Definition below infraspinatus muscle --rotates arm laterally Term subscapularis Definition rotates arm medially Term biceps brachii Definition 2 heads on the upperarm --involved in forearm flexion (pulls the radius towards the scapula) Term brachialis Definition synergist mover to the biceps brachii in forearm flexion found below the biceps brachii Term triceps brachii Definition 3 heads in upper arm--towards the back/inside of arm--involved in forearm extension Term external oblique Definition at an angle on sides--rotates the trunk Term rectus abdominus Definition straight down the abdomin--flexes trunk Term linea alba Definition the white line down the rectus abdominus that is connective tissue that runs from xiphoid process to symphysis pubis Term iliopsoas group Definition on the torso model below kidneys--primary flexors of the thigh Term quadriceps femoris Definition composed of the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius that extend the leg at the knee Term rectus femoris Definition straight down the femur--extends leg at the knee and performs thigh flexion Term vastus lateralis Definition to the lateral side of the top of the leg--extends the leg at the knee Term vastus medialis Definition medial part of upper leg that extends the leg at the knee Term vastus intermedius Definition underneath rectus femoris--extends leg at the knee Term gracilis Definition down middle of the inside of the thigh--adducts the leg Term gluteus maximus Definition outside of butt involved in thigh extension and hyperextension Term hamstrings Definition composed of the biceps femoris, semitendinosus, and semimembranosus--involved in lower leg flexion and thigh extension and hyperextension Term biceps femoris Definition towards the middle/outide of the upper leg on the backside--involved in lower leg flexion and thigh extension and hyperextension Term semitendinosus Definition directly medial to the biceps femoris--involved in lower leg flexion and thigh extension and hyperextension Term semimembranosus Definition slightly medial of the semitendinosus (crosses and goes to the lateral side of the semitendinosus at the knee, but for the most part, it is medial)--involved in lower leg flexion and thigh extension andhyperextension Term sartorius Definition goes from the hip to the inside of the leg (forms a V shape when legs are together)--helps in crossing legs Term gluteus medius Definition underneath the gluteus maximus--abducts and rotates thigh medially Term tibialis anterior Definition front of tibia--involved in dorsiflexion and inversion of foot Term gastrocnemius Definition big muscle on calf involved in plantar flexion Term soleus Definition underneath the gastrocnemius--on the lower part of leg (supposed to look like a fish)--involved in plantar flexion Term calcaneal tendon Definition called the Achilles tendon--helps the gastrocnemius and soleus insert on the calcaneus bone