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BIO-113 Ch. 16-17
| Question | Answer |
|---|---|
| What is the function of the semicircular canal? | Rotational motion |
| What is the function of the vestibular apparatus? | Linear accomodation of gravity |
| Describe the function of the cochlea. | Gives us the sensation of hearing. |
| Define vertigo. | When the hair cells bend and you're not moving, dizziness occurs. |
| Define tinnitus. | Hair cells in the cochlea causes ringing in the ears. |
| What is the Snellen chart used for? | Chart to test vision at a distance. |
| What does 20/200 vision mean? | What you see at 200 ft normal people see at 20 ft. |
| Describe two conditions associated with an abnormal shaped eye. | Far sighted the eye is shorter than normal. Near sighted the eye is larger/longer than normal. |
| What is astigmatism? | Misshapen cornea. |
| Define keratitis. | Inflammation of the cornea caused by trauma. |
| Define stye. | Inflamed/Infected tarsal gland. |
| Define photophobia. | Fear of light caused by migraine or dilated eyes. |
| Define nystagamus or strabismus. | Constant involuntary movement of the eye. |
| What is the most common type of blindness in the United States? | Red/Green color blindness. |
| What is the etiology for color blindness? | Problem with x chromosome. |
| Differ between serous and suppurative otitis media. | Serous- fluid like, non-bacterial Suppurative- bacteral infection |
| What is meant by having tubes put in the ears? | Eustachian tube is blocked so tubes are put in to equalize pressure so the eardrum can vibrate and give us normal hearing. |
| What does tubes in the ear prevent? | Blocked Eustachian tubes and unequal pressure. |
| Define cerumen and its function. | Ear wax, trap foreign objects. |
| Define prebycusis. | Hearing loss due to aging. |
| Define motion sickness. | Problems with semi circular canals or vestibular apparatus. |
| Describe the anatomy of the male reproductive system. | Penis- sex organ Testis- sperm & testosterone Vas deferens- connects penis & testis Accessory glands- Prostate, seminal vessicles, bulbourethral gland |
| What does the testis produce? | Sperm |
| Describe the connection between the hypothalamus and the testis. | GnTh-RH is released by the hypothalamus to the anterior pituitary gland which produces GnTH that goes to the testis. |
| Draw and label a sperm/ with functions. | Head, nucleus, acrosome cap, mitochondria in midpiece, tail |
| How many sperm in ejaculate? % makeup? | 100,000,000 sperm 50% normal, 25% dead, 25% abnoraml |
Created by:
allyjs94
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