Lab Practical 2

Question 1

Fibrous Joints

Answer 1

suture-cranial and facial bones’

gomphosis-tooth fastened into mandible or maxilla

Question 2

Synovial Joints

Answer 2

“modified hinge”-temporal bone and mandible

Question 3

Synarthrotic

Answer 3

no movement

Question 4

Diarthrotic

Answer 4

freely movable

Question 5

meatus

Answer 5

bone feature that can be described as a tubelike passageway or canal

Question 6

fossa

Answer 6

depression or relatively deep pit in a bone

Question 7

fontanel

Answer 7

fetal and infant skulls, membranous region between certain cranial bones

Question 8

foramen

Answer 8

opening in the bone that serves as a passageway for blood vessels

Question 9

innervation, origin, and insertion of buccinator

Answer 9

innervation: facial nerve
origin: outer surfaces of maxilla and mandible
insertion: orbicularis oris muscle
compresses cheeks inward as when blowing air out retracts corner of mouth

Question 10

innervation, origin, and insertion of epicranius

Answer 10

innervation: facial nerve
origin: occipital bone
insertion: skin and muscles around eyebrows and above nose
elevates eyebrows

Question 11

innervation, origin, and insertion of masseter

Answer 11

innervation: mandibular division of trigeminal nerve
origin: zygomatic arch, maxilla
insertion:lateral surface of mandible
elevates and protracts mandible

Question 12

innervation, origin, and insertion of orbiculus oculi

Answer 12

innervation: facial nerve
origin: maxilla, frontal bone
insertion: skin around orbit of eye
closes eye

Question 13

innervation, origin, and insertion of orbicularis oris

Answer 13

innervation: facial nerve
origin: muscles near mouth, maxilla mandbile, nasal septum
insertion: skin of central lip
draws lips together

Question 14

innervation, origin, and insertion of sternocleidomastoid

Answer 14

innervation: spinal accessory nerve
origin: sternum, sternal end of clavicle
instertion: mastoid process of temporal bone
flex neck forward

Question 15

innervation, origin, and insertion of temporalis

Answer 15

innervation:mandibular division of trigeminal nerve
origin: temporal bone
insertion: coronoid process, ramus of mandible
elevates and retracts mandible

Question 16

innervation, origin, and insertion of zygomaticus group

Answer 16

innervation: facial nerve
origin: zygomatic bone
insertion: orbicularis oris muscle
retracts and elevates corner of mouth

Question 17

innervation, origin, and insertion of idaphragm

Answer 17

phrenic nerve
xiphoid process, ribs 7-12, lumbar vertebrae
central tendon

Question 18

innervation, origin, and insertion of external intercostals

Answer 18

intercostal nerves
inferior border of ribs
superior border of ribs

Question 19

innervation, origin, and insertion of external oblique

Answer 19

intercostal nerves
lower 8 ribs
iliac crest. linea alba

Question 20

innervation, origin, and insertion of internal intercostals

Answer 20

intercostal nerves
superior border of ribs
interior border of ribs

Question 21

innervation, origin, and insertion of internal oblique

Answer 21

intercostal nerves
iliac crest
lower 3-4 ribs, pubis, linea alba

Question 22

innervation, origin, and insertion of levator scapulae

Answer 22

cervical plexus
transverse process of c1-c4
superior medial border of scapula

Question 23

innervation, origin, and insertion of pectoralis minor

Answer 23

brachial plexus
sternal end of ribs 3-5
coracoid process of scapula

Question 24

innervation, origin, and insertion of psoas major

Answer 24

lumbosacral plexus
lesser trochanter of femur
transverse processes of lumbar vertebrae

Question 25

innervation, origin, and insertion of rectus abdominis

Answer 25

intercostal nerves pubis, pubic symphysis ribs 5-7, xiphoid process

Question 26

innervation, origin, and insertion of rhomboideus group

Answer 26

brachial plexus spinous processes c7, t1-t5 medial border of scapula

Question 27

innervation, origin, and insertion of serratus anterior

Answer 27

spinal accessory nerve plus brachial plexus outer surface of first 8-9 ribs ventral surface of scapula

Question 28

innervation, origin, and insertion of transversus abdominis

Answer 28

intercostal nerves lower 6 ribs, iliac crest, lumbar vertebrae pubis, linea alba, xiphoid process

Question 29

innervation, origin, and insertion of trapezius

Answer 29

spinal accessory nerve occipital bone, spinous processes of C and T vertebrae spine, acromion process of scapula, acromial end of clavicle

Question 30

innervation, origin, and insertion of coracobrachialis

Answer 30

brachial plexus coracoid process of scapula medial surface of humerus

Question 31

innervation, origin, and insertion of deltoid

Answer 31

brachial plexus acromion process of spine of scapula, clavicle deltoid tuberosity of humerus

Question 32

innervation, origin, and insertion of infrapinatus

Answer 32

brachial plexus infraspinous fossa greater tubercle of humerus

Question 33

innervation, origin, and insertion of latissimus dorsi

Answer 33

brachial plexus | spinous processes of lower 6t all l and s vertebrae, iliac crest, ribs

Question 34

innervation, origin, and insertion of pectoralis major

Answer 34

brachial plexus clavicle, sternum, ribs 2-6 intertubercular sulcus of humerus

Question 35

innervation, origin, and insertion of supraspinatus

Answer 35

brachail plexus supraspinous fossa greater tubercle of humerus

Question 36

innervation, origin, and insertion of subscapularis

Answer 36

brachial plexus subscapular fossa lesser tubercle of humerus

Question 37

teres major

Answer 37

brachial plexus lateral and medial borders of scapula intertubercular sulcus and lesser tubercle of humerus

Question 38

innervation, origin, and insertion of teres minor

Answer 38

brachial plexus lateral and medial borders of scapula greater tubercle of humerus

Question 39

innervation, origin, and insertion of biceps brachii

Answer 39

brachial plexus coracoid process, tuberle above glenoid cavity of scap radial tuberosity

Question 40

innervation, origin, and insertion of brachialis

Answer 40

brachial plexus anterior surface of humerus coronoid process

Question 41

innervation, origin, and insertion of brachioradialis

Answer 41

brachial plexus distal lateral end of humerus surface of radius proximal to sydloid process

Question 42

innervation, origin, and insertion of extensor carpi radialis group

Answer 42

brachial plexus lateral surface and lateral epicondyle of humerus proximal end of second and third metacarpals

Question 43

innervation, origin, and insertion of extensor carpi ulnaris

Answer 43

brachial plexus lateral epicondyle of humerus, ulna proximal end of 5th metacarpal

Question 44

innervation, origin, and insertion of flexor carpi radialis

Answer 44

brachial plexus medial epicondyle of humerus proximal end of metacarpals 1-3

Question 45

flexor carpi ulnaris

Answer 45

brachial plexus medial epicondyle of humerus, olecranon process of ulna 5th metacarpal, carpals

Question 46

innervation, origin, and insertion of triceps brachii

Answer 46

brachial plexus tubercle below glenoid fossa, posterior humerus clecranon process of ulna