BSCI 1511 Study Guide - Midterm Guide: Sister Chromatids, Gamete, Dystonia

• School: Vanderbilt University
• Department: Biological Sciences
• Course: BSCI 1511
• Professor: Abbot Patrick, Julian Hillyer

Document Summary

Thermoregulation: balancing heat loss and gain: insulation a. i. Can often be adjusted to thermoregulate can be rapid or seasonal a. ii. 1. a. ii. 2. Seasonal (acclimatization): changes in the composition of: balancing heat loss and gain: circulatory adaptations the insulating layer or layers b. i. Circulatory adaptations = adaptations that regulate the extent of blood flow near the body surface or that trap heat w/in the body core b. i. 1. Vasodilation (blood vessels expand) in skin increases transfer of body heat to environment through conduction, convection, and radiation b. i. 1. a. Vasoconstriction (blood vessels contract) in skin decreases transfer of body heat to the environment through conduction, convection, and radiation b. i. 2. a. Countercurrent exchange = transfer of heat (or solutes) between fluids that are flowing in opposite directions b. ii. 1. Allows for heat exchange between arteries and veins that are traveling in opposite directions: balancing heat loss and gain: evaporative cooling c. i.