Zoo Lab Exam Final

what the forg

a1

Nostrils/External Nares

b1/f

tympanic membrane: eardrum receives sound waves behind eye

c

nictitating membrane: transparent lower eyelid moves over eye to clean/protect

d

eye

g

buccal cavity/mouth

h

tongue

i

maxillary teeth

jay 😭

vomarine teeth

k

eustachian tube: Lead to tubes that connect to middle ear, equalize air

a2

esophagus: Tube that connects mouth and stomach

b2

glottis: Opening from mouth to respiratory

a

pterygoideus: originated from fronto-parietal and prootic; insertion on the lower jaw; elevates mandible

b

depressor mandibularis: flat portion connected to median line through a tough fascia; jaw depressor

c

temporalis: from mid-dorsal skull; insert into posterior region of mandible ; closes mouth, raises lower jaw

d

masseter: insertion at lower jaw; elevates the lower , closes the mouth

e

dorsalis scapulae: posterior to depressor mandibularis>fascia must be cut to expose this muscle; abducts arm

f

latissimus dorsi: moves forelimbs up and backward

g

longissimus dorsi: posterior to latissimus dorsi; elevates head, extends back of the frog

h

external oblique: covers lateral part of body; originates at dorsal fascia and ilium; insertion at linea alba; fixes urostyle to pelvic girdle

i

gluteus: originates on ilium and inserts on the femur; rotates the thigh

jay

pyriformis: small, near cloaca opening ; from urostyle, insert in femur, extend/rotate thigh

k

triceps femoris: 3 parts originate/insert into skeletal elements; flex thigh, extend shank

l

gracilis minor: attached to gracilis major, inserted into tibio-fibula; flexes/extends the shank (action depends on position of the shank)

m

gastrocnemius: 2 joints; originates from femur>proximal end of tibio-fibula>a tendon that passes over the knee; inserted by tendons of Achilles; extends the foot, flexes shank

n

semimembranosus: from ischium and pubis, inserts on tibio-fibula; extends/adducts thigh (action depends on thigh position); flexes/extends the shank (action depends on shank position)

o

biceps femoris: between triceps femoris and semimembranosus; originates on the ilium and inserts on the tibio-fibula and femur; extends and adducts the thigh and flexes the shank

a

deltoid: originates at the scapula and inserts at the deltoid-ridges; adducts and protracts the forearm

b

myloyoid: originates at the medial surface of the mandible and inserts at the medial line of the lower jaw; depresses the lower jaw and opens the mouth

c

pectoralis: originates at the sternum and inserts at the deltoid ridge of humerus; adducts, flexes, and rotates the arm

d

adductor magnus: originates at ischial and pubis symphysis and inserts at the distal end of the femur; adducts the thigh and draws the same ventrally; adducts the leg

e

sartorius: traverses the thigh originates at the pubis symphysis and inserts below the head of the tibia; bends the shank

f

triceps femoris: 3 parts originate/insert into skeletal elements; flex thigh, extend shank

g

gracilis major: originates at the posterior margin of ischium and inserts at the proximal end of tibio-fibula; adducts and extends the thigh

h

gracilis minor: attached to gracilis major, inserted into tibio-fibula; flexes/extends the shank (action depends on position of the shank)

i

gastrocnemius: 2 joints; originates from femur>proximal end of tibio-fibula>a tendon that passes over the knee; inserted by tendons of Achilles; extends the foot, flexes shank

j

tendons of achilles: inserts into position gastrocnemius muscle; raise heel as one walks; push up the toes and lift the rear of the foot