Blood Vessel and Paths of Circulation 36a A&P: Cardiovascular - - PowerPoint PPT Presentation

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Blood Vessel and Paths of Circulation 36a A&P: Cardiovascular - - PowerPoint PPT Presentation

Jan 28, 2023 840 likes •1.39k views

36a A&P: Cardiovascular System - Blood Vessel and Paths of Circulation 36a A&P: Cardiovascular System - Blood Vessels and Paths of Circulation Class Outline 5 minutes Attendance, Breath of Arrival, and Reminders

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36a A&P: Cardiovascular System - Blood Vessel and Paths of Circulation

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36a A&P: Cardiovascular System - Blood Vessels and Paths of Circulation

Class Outline 5 minutes Attendance, Breath of Arrival, and Reminders 10 minutes Lecture: 25 minutes Lecture: 15 minutes Active study skills: 60 minutes Total

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Assignments:

  • 36b State Law Review Questions (Packet A: 157-164)
  • 41a Review Questions (Packet A: 165-178)
  • 43a Swedish: Outside Massages (Packet A: 57-62)

Quizzes:

  • 42a Written Exam Prep Quiz (35a, 36a, 37a, 38a, 39a, 40a, and 41a)
  • 42b Kinesiology Quiz

– (adductor magnus, gracilis, iliopsoas, sartorius, TFL, piriformis, quadratus femoris)

  • 44a Written Exam Prep Quiz (33b, 37b, 41b, 42b, and 43a)

Preparation for upcoming classes:

  • 37a Pathology: Circulatory System

– Werner: Chapter 5 – Packet E: 73-74 – RQ Packet A-169

  • 37b Business: State Massage Law and Find a Job

– Business Mastery: Pages 125-144 – Packet B: 33-36 – RQ Packet A-170

36a A&P: Cardiovascular System - Blood Vessels and Paths of Circulation

Class Reminders

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Classroom Rules

Punctuality - everybody’s time is precious

  • Be ready to learn at the start of class; we’ll have you out of here on time
  • Tardiness: arriving late, returning late after breaks, leaving during class, leaving

early The following are not allowed:

  • Bare feet
  • Side talking
  • Lying down
  • Inappropriate clothing
  • Food or drink except water
  • Phones that are visible in the classroom, bathrooms, or internship

You will receive one verbal warning, then you’ll have to leave the room.

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Iliopsoas

Trail Guide, Page 332

Iliopsoas is the combination of psoas major and iliacus. Psoas major stretches from the lumbar vertebrae to the lesser trochanter. Iliacus is stockier. It begins in the iliac fossa and also inserts on the lesser trochanter.

Anterior View

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Iliopsoas

Trail Guide, Page 332

Psoas major

  • Iliacus
  • Iliopsoas, what does it do?
  • Anterior View
  • Anterior View
  • Anterior View
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O A I

Anterior View

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O A I

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O A I

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O A I

Anterior View

  • Lateral View
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Time to shift gears

  • From psoas major to iliacus . . .
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O A I

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36a A&P: Cardiovascular System - Blood Vessels and Paths of Circulation E - 69

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Walls of Arteries and Veins Arteries Pulse Capillary Veins Venous Return

Blood Vessels

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Tunica interna (AKA: tunica intima) Innermost layer of a blood vessel. Endothelium fused with a small quantity of elastic connective tissue. Valves assists venous return by only allowing blood to move back toward the heart.

Walls of Arteries and Veins

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Tunica media Middle layer of a blood vessel. Contains both connective tissue and smooth muscle.

Walls of Arteries and Veins

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Tunica externa (AKA: tunica adventitia) Outer layer of a blood

  • vessel. Possesses mostly dense connective tissue.

Walls of Arteries and Veins

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Vasodilation Enlargement of the vascular lumen’s diameter. Vasoconstriction Narrowing of the vascular lumen’s diameter.

Vasodilation Normal Vasoconstriction

Walls of Arteries and Veins

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Vasodilation Enlargement of the vascular lumen’s diameter. Vasoconstriction Narrowing of the vascular lumen’s diameter.

Walls of Arteries and Veins

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Hyperemia Increased local blood flow causing the skin to become reddened and warm. Ischemia Local abnormal decrease in blood flow. Often marked by pain and tissue dysfunction.

Walls of Arteries and Veins

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Artery Vessel that carries blood away from the heart to the tissues

  • f the body.

Arterioles Small-sized arteries.

Arteries

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Ascending aorta Very large artery that begins at the left ventricle and travels superiorly.

Arteries

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Descending aorta Very large artery that is a continuation of the ascending aorta that branches off and travels inferiorly.

Arteries

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Common carotid arteries Two arteries located in the throat.

Right Carotid Artery Left Carotid Artery

Arteries

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Pulse Expansion effect of arteries that occurs when the left ventricle contracts and produces a wave of blood that surges through and expands arterial walls.

Arteries

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Capillary Vessel between an arteriole and a venule. Possesses a thin, permeable membrane for efficient gas exchange with tissues.

Capillaries

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Microcirculation Flow of blood through a capillary bed .

Capillaries

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Vein Vessel that carries blood toward the heart. Venules Small-sized vein that connects with capillaries.

Veins

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Superior vena cava Very large vein that empties blood from the head and arms into the right atrium.

Veins

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Inferior vena cava Very large vein that empties blood from the abdomen into the right atrium.

Veins

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Jugular Vein in the throat that drains blood from the face, head, neck, and brain.

Veins

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Avascular Lacking blood vessels.

Blood Vessels

Cartilage Cornea Epithelial tissues of the epidermis

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Venous return Veins return blood to the heart passively. Venomotor tone Skeletal muscle pump Respiratory pump

Venous Return

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Venomotor tone Changes in smooth muscle tone in the walls of veins can increase or decrease venous circulation.

Venous Return

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Skeletal muscle pump Skeletal muscle contract and squeeze venous , walls which moves blood toward the heart.

Venous Return

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Respiratory pump Pressure changes in the thorax and abdomen , caused by skeletal muscular contractions of breathing muscles that act as a mechanism to assist venous return.

Venous Return

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Systolic pressure Diastolic pressure High blood pressure Average blood pressure Low blood pressure

Blood Pressure

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Blood pressure Pressure exerted by blood on the blood vessel walls. Systolic pressure Maximal pressure in blood pressure measurement. Occurs when the left ventricle contracts. Diastolic pressure Lowest pressure in blood pressure measurement. Occurs when the left ventricle relaxes.

Blood Pressure

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High blood pressure (AKA: hypertension) Persistently more than 140/90. Average blood pressure 120/80. Low blood pressure (AKA: hypotension) Persistently less than 90/60.

Blood Pressure

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Pulmonary circuit Systemic circuit

Paths of Circulation

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Pulmonary circuit Circuit that brings de-oxygenated blood from the right , ventricle of the heart to the lungs to release carbon dioxide and regain oxygen, then transports the oxygenated blood to the left atrium.

Paths of Circulation

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Systemic circuit Circuit that brings oxygenated blood from the left , ventricle of the heart through numerous arteries into the capillaries, then moves it through the veins and returns the now de-oxygenated blood to the right atrium of the heart.

Paths of Circulation

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Systemic Circuit

  • 1. Left ventricle
  • 2. Aortic semilunar valve
  • 3. Aorta
  • 4. Ascending and descending aortae
  • 5. Arteries
  • 6. Arterioles
  • 7. Capillaries
  • 8. Venules
  • 9. Veins
  • 10. Inferior and superior venae cavae
  • 11. Right atrium

Paths of Circulation

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36a A&P: Cardiovascular System - Blood Vessels and Paths of Circulation