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BIOM 3200 Study Guide - Midterm Guide: Extracellular Fluid, Thoracic Duct, Red Pulp

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ceruleangoat128
24 Feb 2020
School
University of Guelph
Department
Biomedical Sciences
Course
BIOM 3200
Professor
Alastair Summerlee

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Document Summary

Lymphatic vessels: are closely associated with the circulatory system. They carry lymph, collected from lymphatic capillaries, back to the venous circulatory system. They are composed of inner layer of endothelial cells, middle layer of smooth muscle and outer layer of connective tissue. Similar to veins, lymphatic vessels also contain one-way valves to ensure lymph flows in the same direction towards the heart. Lymphatic vessels help maintain blood and tissue volume by absorbing excess interstitial fluid. It is also an important part of the immune system as it carries immune cells to various parts of the body to ward off infection. Lastly, it carries fat absorbed from the intestinal tract back to the circulatory system. Having more afferent lymph vessels draining into the lymph nodes and fewer efferent vessels leaving the lymph node allows for slower filtration of lymph as it passes through the lymph node. Lymphatic nodes: are found within lymphatic vessels throughout the body.

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QuestionGroup: #37 CNS

Assigned as

Homework

37

Which parts of the brain contribute to our social behavior?

A

Orbitofrontal cortex

B

Mirror neurons

C

Amygdala

D

All of these are correct

Answered

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QuestionGroup: #38 CNS2

Assigned as

Homework

38

Part of the explanation of long term memory is which of the following?

A

Long term potentiation between neurons and muscle cells

B

Long term potentiation between neurons

C

Short term translation

D

Long term transcription

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QuestionGroup: #39 PNS

Assigned as

Homework

39

The somatic component of the peripheral nervous system has which of the following characteristics?

A

It controls the smooth muscle in the blood vessels so that blood vessels can vasoconstrict or vasodilate

B

It controls the autonomic nervous system so it indirectly controls heart rate

C

It controls your skeletal muscle so you can answer this question by pushing on the keyboard

D

It controls the smooth muscle in your intestinal tract so it controls peristalsis

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QuestionGroup: #40 Smooth/skeletal

Assigned as

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40

Which of the following is NOT a part of a skeletal muscle cell?

A

Motor neurons

B

Nuclei

C

Sarcomeres

D

Actin

E

Myosin

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QuestionGroup: #41 Cardio

Assigned as

Homework

41

Which part of the circulatory system has the highest pressure?

A

Veins

B

Capillaries

C

Arteries

D

Aorta

Answered

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QuestionGroup: #42 Cardio2

Assigned as

Homework

42

Where do the electrical signals originate in your heart?

A

SA node

B

Internodal tracts

C

His-Purkinje System

D

AV node

Answered

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QuestionGroup: #43 Blood pressure

Assigned as

Homework

43

There was a horrific traffic accident and you run to help the victims. You feel a pulse from his carotid artery ,however the medic comes along and gets no blood pressure as he measures it from the arm. He claims the victim is dead. You think which of the following?

A

Medic is not correct since it is the difference between heart rate and blood pressure that determines life. No heart rate only means tha the sympathetics have stopped vasoconstricting the blood vessels.

B

Medic is correct since it is common to not have a blood pressure of 120/80 and no pulse due to stress as was discussed in class.

C

Medic is incorrect since there is a pulse. This means the person is still alive.

D

Medic is correct since there is no blood pressure there is no life.

Answered

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QuestionGroup: #44 Blood pressure2

Assigned as

Homework

44

Which side of the capillary bed has the higher oncotic pressure?

A

venous and lymph

B

arterial and lymph

C

lymph

D

venule side

E

arterial side

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QuestionGroup: #45 Capillaries

Assigned as

Homework

45

If the hydrostatic pressure is higher in the interstitial space rather than the capillary, which of the following will occur?

A

(2),(3)

B

(1),(2),(3)

C

(3) Decreased hydrostatic pressure in the arterial end of the capillary

D

(2) Decreased hydrostatic pressure in the venous end of the capillary

E

(1) No change in the hydrostatic pressure since this pressure is maintained regardless of external pressures.

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QuestionGroup: #46 Respiration/ ventilation

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Homework

46

The left atrium is damaged and is generating a great resistance to blood coming from pulmonary vein. What happens due to this pressure?

A

Back up of blood in the pulmonary artery which causes pulmonary capillary edema

B

Generation of back flow into the inferior vena cava

C

Generation of coronary artery edema

D

Back up of blood in the pulmonary vein which causes pulmonary capillary edema

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QuestionGroup: #47 Respiration/ventilation 2

Assigned as

Homework

47

Edema in the pulmonary circulation refers to which of the following?

A

additional fluid in the trachea

B

additional interstitial fluid

C

additional surfactant

D

additional capillary fluid

E

additional intracellular fluid

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QuestionGroup: #48 Cell communication

Assigned as

Homework

48

What is the definition of a signaling pathway?

A

All the proteins in the nucleus

B

All the cell molecules in the mitochondria

C

A group of genes that control mitosis

D

A specific chemical pathway that is activated by the ligand/receptor complex.

Answered

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QuestionGroup: #49 Hormone/ menstruation

Assigned as

Homework

49

Which hormone directly causes ovulation?

A

Follicle stimulating hormone

B

Lutenizing hormone

C

Progesterone

D

Estrogen

E

All of these