Ch.45 - Endocrine SystemWorksheetSee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology

Solution: Malfunction in a control pathway for prolactinSuppose that a woman had to have part of her thyroid gland surgically removed. She would most likely suffer from a condition known as hypothyroidism due to too little thyroid function.Predict how this woman's hypothyroidism would affect prolactin levels in her body.Which choice describes how surgical hypothyroidism would likely affect prolactin levels?a. Thyroid hormone levels decrease, TRH levels decrease, and PRL levels decrease.b. Thyroid hormone levels decrease, TRH levels decrease, and PRL levels increase.c. Thyroid hormone levels decrease, TRH levels increase, and PRL levels decrease.d. Thyroid hormones levels decrease, TRH levels increase, and PRL levels increase.e. Thyroid hormone levels increase, TRH levels increase, and PRL levels increase.f. Thyroid hormone levels increase, TRH levels increase, and PRL levels decrease.g. Thyroid hormone levels increase, TRH levels decrease, and PRL levels increase.

Solution: Malfunction in a control pathway for prolactinSuppose that a woman had to have part of her thyroid gland surgically removed. She would most likely suffer from a condition known as hypothyroidism due t

Problem

Malfunction in a control pathway for prolactin

Suppose that a woman had to have part of her thyroid gland surgically removed. She would most likely suffer from a condition known as hypothyroidism due to too little thyroid function.

Predict how this woman's hypothyroidism would affect prolactin levels in her body.

Which choice describes how surgical hypothyroidism would likely affect prolactin levels?

a. Thyroid hormone levels decrease, TRH levels decrease, and PRL levels decrease.

b. Thyroid hormone levels decrease, TRH levels decrease, and PRL levels increase.

c. Thyroid hormone levels decrease, TRH levels increase, and PRL levels decrease.

d. Thyroid hormones levels decrease, TRH levels increase, and PRL levels increase.

e. Thyroid hormone levels increase, TRH levels increase, and PRL levels increase.

f. Thyroid hormone levels increase, TRH levels increase, and PRL levels decrease.

g. Thyroid hormone levels increase, TRH levels decrease, and PRL levels increase.