Summary Mastering Biology notes on Chapter 40 The Animal Body
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Course
Human and Animal Biology (BIO13)
Institution
University College Utrecht (UCU)
These notes are on topics about the Animal Body including connective tissue, epithelial tissue, thermoregulation, positive and negative feedback, energy expenditure, the endocrine system, hypothalamus and pituitary glands, prolactin, hypo and hyperthyroidism, epinephrine, etc.
Neuroplasticity: brains develop and grow with effort and challenges
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Unit 40: The Animal Body
Animal tissues
Types of connective tissues
Types of epithelial tissue
Thermoregulation
High body temp => vasodilation (more heat loss to the env) => body temp decreases
Low body temp => vasoconstriction (less heat loss to the env) => body temp increases
e.g. of negative feedback
Negative feedback: reducing stimulus to maintain homeostasis
Positive feedback: amplify a response
, Countercurrent heat exchange
Adaptation in mammals, regulate heat loss and gain
In cool env, heat retention. e.g. sperm
Ectotherm: gain heat from environment
Endotherm: generate heat
Homeotherm: keep body temp constant (homeostasis)
Poikilotherm: allow temp to fluctuate
Humans: homeo + endo (‘warm blooded’)
Energy expenditures
- Metabolism
- Reproduction
- Thermoregulation
- Activity
- Growth
If ectotherm, thermoregulation doesn’t require energy
Small animals lose heat faster. High SA:Vol ratio
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