Chapter 40
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
What are the 3 methods to maintain homeostasis?
Form, function and behavior
What levels are form and function correlated at?
All
Are organisms subject to physical laws? If so, give an example.
Yes, fish body shape minimizes drag
How do cells interact with the environment?
Exchanging things (H2O, gas)
Do most animals have surfaces to interact with environment? If so, what do these look like?
Yes- openings on surface (mouth, pores)
What does interstitial fluid do?
Bathe cells, provide nutrients, remove waste
LOOK AT BODY STRUCTURE DIAGRAM
What are the 4 main types of tissues?
Epithelial, connective, muscle, nervous
What are some characteristics of epithelial tissue?
Different cell shapes and arrangement to correlate with different functions (lining things) Cells have 2 sides- Apical (exposed to fluid/air) and basal
What are some examples of connective tissue?
Blood, cartilage, bone, adipose
What are some characteristics of muscle tissue?
Skeletal- striated Smooth- bladder, arteries, stomach (involuntary contraction) Cardiac- contractive walls of heart, striated
What are some characteristics of nervous tissue?
Recieves and responds to information
What are some examples of nervous tissue?
Neurons and glial cells (glial cells support, insulate, and replenish neurons) Neurons receive and send out impulses
What are the 3 fiber types?
Collagenous, reticular, elastic
What are some ways the body responds to stimuli?
ENdocrine and nervous system
What responses are done by endocrine system?
Gradual, growth, development
What responses are done by nervous system
Reflexes, rapid responses
Where do the differences lie in endocrine/nervous responses?
Signal type, speed, transmission (neurons are specific, hormones just bind to receptors- think HAVK), duration
What is a refulator?
~=T @ diff environmental T
What is a conformer?
Change in body temperature with environmental
What is an example of a negative feedback loop?
Sweating/shivering
What is an example of a positive feedback loop?
Childbirth
How are changes in homeostasis?
Regulated, eg hormone levels in pubertyW
What are circadian rhythms?
24 hour internal sleep wake cycles, internal but can change, important to health