aging, homeostasis, common disorders ch 10

Question 1

as you age the mass of the brain decreases, at age 80 the brain weighs about…..less
what does decreases as the mass decreases

Answer 1

7% less
decreased capacity to send nerves impulses to and from the brain, processing of info, voluntary motor movements slow down, reflex time increases

Question 2

spinal cord injuries common sites of injury

Answer 2

cervical, lower thoracic and upper lumbar regions

Question 3

monoplegia

Answer 3

paralysis of one limb only

Question 4

diplegia

Answer 4

paralysis of the same part on both sides of the body..generally lower limbs

Question 5

paraplegia

Answer 5

paralysis of both lower limbs

Question 6

hemiplegia

Answer 6

paralysis of upper limb, trunk, lower limb on same side of body

Question 7

quadriplegia

Answer 7

paralysis of all 4 limbs

Question 8

shingles-what is it, caused by

Answer 8

acute infection of the peripheral nervous system caused by the reactivation of the varicella-zoster virus (VZV), the virus causes causes chickenpox

Question 9

parkinson’s disease

Answer 9

progressive disorder of the cns that typically affects its victims around age 60
-involuntary skeletal muscle contractions often interfere with voluntary movement…tremor most common symptom

Question 10

parkinson’s disease-bradykinesis

Answer 10

slowness of movements

Question 11

parkinson’s disease- hypokinesia

Answer 11

decreasing range of motion

Question 12

alzheimer’s disease-what is it, whats the common form, what does disease culminate as, how do they normally die

Answer 12

severe memory deficits
- senile dementia: age related loss of intellectual capabilities-memory, judgement, abstract thinking, changes in personality
-dementia
-pneumonia

Question 13

brain tumor

Answer 13

abnormal growth of tissue in the brain that is malignant or benign. causes a buildup of pressure in skull

Question 14

most common malignant brain tumors

Answer 14

are secondary tumors that metastasize from other places

Question 15

most primary brain tumors are and develop where

Answer 15

gliomas, develop in neuroglia