final exam pathways

Question 1

pathway of a tear

(6, but one won’t be tested)

Answer 1

lacrimal gland–excretory lacrimal ductule–over the eye (won’t be tested)–lacrimal punctum–lacrimal canaliculus–lacrimal sac

Question 2

pathway of light

(6)

Answer 2

cornea–anterior chamber–pupil–lens–vitreous chamber–retina

Question 3

pathway of sound

(9)

Answer 3

auricle/pinna–external acoustic meatus–tympanic membrane–malleus–incus–stapes–oval window–cochlea–round window

Question 4

pathway of blood through the heart

(14)

Answer 4

right atrium–right atrioventricular valve–right ventricle–conus arteriosus–pulmonary valve–pulmonary trunk–pulmonary artery–lung–pulmonary vein–left atrium–left atrioventricular valve–left ventricle–aortic valve–ascending aorta

Question 5

pathway of air

(9)

Answer 5

nostrils–nasal cavity–choanae–nasopharynx–oropharynx–laryngopharynx–larynx–trachea–primary bronchi

Question 6

pathway of food

(18)

Answer 6

mouth–oropharynx–laryngopharynx–esophagus–stomach–duodenum–jejunum–ileum–cecum–ascending colon–hepatic flexure–transverse colon–splenic flexure–descending colon–sigmoid colon–rectum–anal canal–anus

Question 7

pathway of bile (there’s 2)

(L:5, G:4)

Answer 7

liver–right and left hepatic ducts–common hepatic duct–common bile duct–duodenum
or
gallbladder–cystic duct–common bile duct–duodenum

Question 8

pathway of fluid

(14)

Answer 8

afferent arteriole–glomerulus–glomerular capsule–proximal convoluted tubule–nephron loop–distal convoluted tubule–collecting duct–minor calyx–major calyx–renal pelvis–ureter–bladder–urethra–external urethral orifice

Question 9

pathway of oocyte

(7)

Answer 9

ovary–uterine tube (oviduct)–fundus of uterus–body of uterus–cervix of uterus–vagina–vaginal orifice

Question 10

pathway of sperm

(8)

Answer 10

testis–epididymis–ductus (vas) deferens–ejaculatory duct–prostatic urethra–membranous urethra–spongy urethra–external urethral orifice