BIOS 255 Week 3 Lab-Blood Pressure/Blood Vessel Labeling

BIOS 255 Week 3 Lab-Blood Pressure/Blood Vessel Labeling

Name

Chamberlain University

BIOS-255: Anatomy & Physiology III with Lab

Prof. Name

Date

Cardiovascular System: Blood Vessels

Learning objectives:

• Identify the structural layers of arteries and veins.
• Distinguish between the structure of arteries and veins.
• Explain the factors that affect arterial blood flow and blood pressure.
• Define shock and identify the signs of shock.
• Identify key blood vessels of the cardiac, systemic, and pulmonary circulations.

Introduction:

Blood circulates throughout the body via three types of blood vessels: arteries, capillaries, and veins. Both arteries and veins are made up of three distinct layers of tissue, while capillaries consist of a single layer. Several factors influence blood pressure and flow within these vessels. Additionally, there are various mechanisms through which shock can occur. In this study, we will follow the path of blood through pulmonary and systemic circulations, identifying the major arteries and veins along the way. Interactive 3D models will be used to explore blood vessels in more detail.

Assignment:

Part 1: 

Complete the activities in the following sections of Anatomy.TV Cardiovascular System: Blood Vessels, Blood Flow and Pressure, Circulatory Pathways, Vessels of the Trunk, Vessels of the Head and Neck, and Vessels of the Limbs.

To access Anatomy.TV, navigate to:
Resources tab > Library > Library Resources-Database A-Z > Anatomy.TV > Cardiovascular System > Assigned Sections

Once you are in the Cardiovascular System section, scroll through and complete the activities. As you proceed, keep a lab report handy to record data.

Part 2: 

Complete the lab report.

Blood Vessel Lab Report

1. Describe the different types of blood vessels by completing the following chart:

2. How does the cardiovascular center alter parasympathetic and sympathetic stimulation of the sinoatrial (SA) node to maintain homeostasis when a fall in arterial pressure is detected by baroreceptors?

When a fall in arterial pressure is detected, the cardiovascular center decreases parasympathetic stimulation to the SA node via the vagus nerve while increasing sympathetic stimulation through the cardiac accelerator nerves.

3. Describe the signs and symptoms of shock.

The signs and symptoms of shock include decreased blood pressure, sweating, increased heart rate, thirst, dehydration, confusion, reduced urination, and, in severe cases, acidosis lactic.

4. Identify the missing arteries from the schematic:

• Aortic arch
• Right subclavian
• Left vertebral
• Right external carotid
• Left internal carotid

5. Identify the missing arteries from the schematic:

• Aortic arch
• Right subclavian
• Left vertebral
• Right external carotid
• Left internal carotid

6. Trace the pathway of a drop of blood from the heart to the top of the foot (dorsalis pedis artery):

• Ascending aorta
• Aortic arch
• Thoracic aorta
• Descending aorta
• Right/left common iliac arteries
• Right/left femoral arteries
• Right/left popliteal arteries
• Right/left anterior/posterior tibial arteries
• Dorsalis pedis artery

7. Trace the pathway of a drop of blood from the superior mesenteric vein to the right atrium:

• Superior mesenteric vein
• Hepatic portal vein
• Liver
• Hepatic vein
• Inferior vena cava
• Right atrium

8. Define the following terms:

a. Portal system: A system of veins that carries blood between capillary networks.

b. Function of the hepatic portal system: The hepatic portal system transports blood from the digestive tract, spleen, and pancreas to the liver for filtration and nutrient processing.

Grading Rubric for Lab Report:

BIOS 255 Week 3 Lab-Blood Pressure/Blood Vessel Labeling