BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Question
Chapter 29, Problem 1CT
Summary Introduction
To explain:
The penetration of lipid-soluble drugs into the blood-brain barrier and affects other cells.
Introduction:
Cerebrospinal fluid is a clear fluid that surrounds the brain and spinal cord. It is also present in the brain ventricles. The fluid serves as a cushion for the tissues of the spinal cord and brain. The fluid contains water with ions and nutrient molecules. It is rich in glucose and oxygen that are utilized by neurons for aerobic respiration.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
List all the layers that must be cut through to reach the tumor. During surgery to remove a tumor from the occipital lobe of the left cerebrum, a surgeon must cut into the brain to reach the tumor.
If neurons in the central nervous system lack centrioles and are unable to divide, how can a person develop brain cancer?
Multiple sclerosis is a neurodegenerative disease in which the body’s immune system attacks and breaks down the white matter in the nervous system.
A. What is another word (other than “white matter”) for the structure or type of cells that are affected in patients with MS?
B. Given what these cells/structures do, what effect on neural transmission do you think MS has?
Chapter 29 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 29 - ______ relay messages from the brain and spinal...Ch. 29 - Prob. 2SACh. 29 - Action potentials occur when ______. a. potassium...Ch. 29 - Neurotransmitters are released by _______. a. axon...Ch. 29 - Prob. 5SACh. 29 - Prob. 6SACh. 29 - Prob. 7SACh. 29 - Prob. 8SACh. 29 - Prob. 9SACh. 29 - Prob. 10SA
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Brain tumors are usually Glial Cell tumors? Do you know why? But first you must know what Glial cells are.arrow_forwardPhenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs that stop seizures from happening. These drugs work by inhibiting electrical impulses (action potentials) from occurring. Explain the importance of sodium and calcium channels on a neuron and and the reasons why action potentials do not occur when these channels are inhibited. Be sure to include the phases of an action potential, the channels involved, and the importance of an action potential.arrow_forwardPhenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs that stop seizures from happening. These drugs work by inhibiting electrical impulses (action potentials) from occurring. Explain the importance of sodium and calcium channels on a neuron and and the reasons why action potentials do not occur when these channels are inhibited. Be sure to include the phases of an action potential, the channels involved, and the importance of an action potential. Be detailed in your explanationarrow_forward
- Neurofibromatosis is a genetic disorder characterized by the growth of tumours called neurofibromas around some neurons. Neurofibromas result from the uncontrolled growth of cells that produce the myelin sheath. List the cells that would be affected by these neurofibromas and include how this may affect proper functioning of the neuron.arrow_forwardIf a person sustained damage to their brain stem, what could be the possible consequences to their body?arrow_forwardThis is a biology question regarding nerve impulses. Neurofibromatosis type 1 is a condition where tumours can grow in the nerves near the skin. The growth of tumours prevents the action potentials from quickly travelling through the neurons. Identify the nerve structure from the image below and the division of the nervous system affected by neurofibromatosis type 1. CNS = Central Nervous System PNS = Peripheral Nervous System Select one: a. Nerve Structure Division of Nervous System 3 PNS b. Nerve Structure Division of Nervous System 4 CNS c. Nerve Structure Division of Nervous System 5 PNS d. Nerve Structure Division of Nervous System 1 CNSarrow_forward
- The walls of blood vessels in the brain are formed by cells that are very tightly packed. This arrangement of cells provides which of the following properties of most brain vasculature? a. efficient removal of waste products by blood systems b. rigidity and likelihood of stroke c. most large and charged molecules cannot move from the blood to the brain d. easy access to required blood chemicals such as glucose, oxygen, and various hormones What does it mean to say that acetylcholine exerts ionotropic effects? a. It opens ion channels. b. It increases the concentration of ions within the vesicles. c. It alters the permeability of the presynaptic neuron. d. It changes the electrical charge of sodium ions from positive to negative.arrow_forwardWhy are cancerous growths that originate in the brain more likely to be composed of neuroglia than of neurons?arrow_forwardEven if the skull and meninges do not break, head trauma can cause blood vessels to rapture in the brain. Shortly explain two ways this rupture is dangerous.arrow_forward
- Antiseizure drugs stop seizures from happening by inhibiting electrical impulses. What is the importance of sodium and calcium channels on a neuron and reasons why actions potentials do not occur when these channels are inhibited.arrow_forwardIn Fragile X Syndrome patients, macrocephaly is a consequence of a relatively increased: Caudate Nucleus Fourth Ventricle Hippocampus All of the abovearrow_forwardThe following statements are true regarding shingles, except a. the condition is caused by a reactivation of the varicella virus that may remain latent in the ganglia of nerve fibers for years. b. you can “come down” with shingles by being exposed to the fluid of shingles lesions. c. psychological stress can reactivate the virus, which causes shingles. d. shingles may cause eye inflammation and facial paralysis.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Medical Terminology for Health Professions, Spira...
Health & Nutrition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Cancer Types SIMPLY explained! MEMORIZE them QUICKLY and EASILY!; Author: CancerEdInstitute;https://www.youtube.com/watch?v=dEBi-yvSWmQ;License: Standard Youtube License