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53 Cards in this Set

  • Front
  • Back
Alveoli
Thin air sacs that are sites for gas exchange between environment and the blood via passive diffusion.






  • O2 into the RBC
  • CO2 out of RBC
What is the pleurae?
The outer lining of the lungs. It is filled with pleura fluid that lubricates the lungs.
What is the trachea?
Is the region of the air intake pathway between the glottis and the bronchi.
aka. windpipe.
Oxygen content is greatest in the fluid, in which structure?
The left ventricle.
Pulmonary Vein
Only vein that carries oxygenated blood.
It is released in the left ventricle.
Pulmonary Artery
Only artery that is deoxygenated blood.
On its way to the lungs to be oxygenated.
Thoracic Duct
- Lymph vessel
- Returning lymphatic fluid back to the venous circulation.
Right Atrium
- Low O2 content.
- Blood returning from body is collected here before heading to the lungs.
Inferior Vena Cava
Returns deoxygenated blood to the heart.

  • Is coming from the lower part of the body.
Medulla Oblongata
  • Controls the rate of breathing, involuntary.
  • Detects decrease in pH in the blood.
  • Indicates increasing CO2.
The Cerebrum
Sensory interpretation, memory, and thought.
The Hypothalamus
Regulates
  • hunger
  • thirst
  • body temp
  • sex drive
  • emotion.
The Cerebellum
  • Fine motor coordination
  • Balance and Equilibrium
Hydrostatic Pressure
  • Greater at the arterial end.
  • Drives fluid out of the vessel into the interstitial space.
Osmotic Pressure
  • Greater at venule end.
  • Drives fluid back in to the vessel to be returned to the circulatory system.
Starling's Hypothesis
All of the fluid cannot be returned to the vessel. Instead some of the fluid travels in to the interstitial spaces until is picked up lymphatic system where it is filtered through the lymph nodes and returns to the circulatory system via thoracic duct.
Epiglottis
The cartilaginous structure that prevents food from going down the trachea.
Glottis
The opening at the top of the trachea that is closed by the epiglottis.
Larynx
- aka. Voice box
- Located below the glottis.
Esophageal Sphincter
- aka. Cardiac Sphincter
- Separated the esophagus from the stomach.
How is Carbon Monoxide be lethal?
Like O2, CO2 is attracted by hemoglobin molecules. Carbon monoxide binds to hemoglobin strongly, and its almost irreversible.
Passive Process
1. Exhalation
2. Gas Exchange
Exhalation
- Passive process
- Relaxation of both diaphragm and the external intercostal.
Gas Exchange
Gases diffuse their partial pressure gradient.
Inhalation
- Active process
- Contraction of the diaphragm and external intercostal.
Describe Veins
  • Thin-walls inelastic vessels that usually conduct deoxygenated blood towards the heart.
  • Veins= towards the heart.

  • Pulmonary Veins= weird (carry Oxygenated blood to left atrium).


Blood Flows
Depends on compression between neighboring skeletal muscles.

Blood Components



Cells


  • Erythrocyte (RBC)
  • Leukocytes (WBC)
  • Thrombocyte/ Platelets

Plasma


Blood Cells

Erythrocyte (RBC)


  • Formed in the Bone Marrow
  • Hemoglobin: Bind Oxygen alson a bit of CO2.
  • No organelle or Nucleus.



Leukocytes (WBC)


  • Stored in the-



Thrombocytes (Blood Clot)

Plasma


  • Liquid
  • Sugars, proteins, antibodies, etc.
  • Osmolarity is highly regulated.

    Serum: Plasma W/OUT clotting factor.

    Blood pH 7.4 (due to bicarbonate)

Blood Type

Your blood type equals the antigen you will recognize.


  • Ex. Blood Type A: You will recognize antigen A.
  • Blood type A: (IA)(IA) or (IA)(i)

Blood Type Facts

  • Universal Donor: O-
  • Universal Recipient: AB+



  • Blood Type O: No Antigens thus No Donor.
  • Blood Type O: (i)(i)

Rh- Factor

Is the +/- in the blood type



  • If Rh- then don't have the antibody until it is produced by the body if the baby is born wil a Rh+. The antibody doesn't affect the baby but if the mom has a second baby with Rh+ than you'll need immuno suppressors.

Blood Vessel

Heart-> Arteries -> Arterioles -> Capillaries -> Venuloes-> Veins

Arteries

  • Carries blood away from the heart.
  • Blood vessels are thick and muscular.
  • Mostly Oxygenated
  • Except for the pulmonary artery= deoxy.
  • No Valves.

Veins

  • Carries blood TOWARDS the heart.
  • Blood vessels are thin.
  • Mostly DEoxygenated.
  • Except for the pulmonary vein= Oxygenated
  • Yes Valves

Capillaries

  • Vein-Artery connection
  • 1 micro cell thick
  • Mixed blood.
  • No Valves

The Heart Pathway

Superior/Inferior Vena Cava ->
Right Atrium-> Tricuspid Valve->
Right Ventricle-> P-semilunar valve->


Pulmonary Artery-> LUNGS-> Pulmonary Vein->
Left Atrium-> Bicuspid Valve->
Left Ventricle-> Aorta Semilunar Valve->
Aorta

Electrical Conduction


  • Origin is the SA node (paste-maker)
Pathway


  • SA node-> AV node-> Bundle of His-> Purkinji Fiber
  • AV Node ensures that atrium is empty before ventricle contracts.

Systole vs Diastol


  • Systole= Ventricle Contracts

  • Diastole= Ventricle Relax

Respiratory Tract

Nares-> Pharynx -> Larynx -> Trachea ->
Bronchi -> Bronchioles -> Alveoli

Circulation: Left and Right


  • Right Heart: Pumps Blood into Pulmonary circulation.

  • Left Heart: Pumps blood into Systemic circulation.

Macrophages

Phagocytize foreign cells.

The Blood Types


  • Type A: (IA)(IA) or (IA)(i)
  • Type B: (IB)(IB) or (IB)(i)
  • Type O: (i)(i)
  • Type AB: (IA)(IB)


Platelets


  • Clot formation
  • Protein: Thrombin and Fibrin

Cardiac Cycle

  • aka Electrical Conduction
  • SA-> AV-> Bundle of His-> Purkinki Fibers

Respiratory System

  • Ciliated nasal membrane warm, moisten, and filter inspired air.
  • Mucus lining the respiratory tract coats particulate matter.
  • The beating of cilia that line the respiratory tract moves foreign particles towards the pharynx for expulsion.

Negative Air Pressure Breathing

Air enters the lunges because of the difference in pressure between the interior of the lungs and the external environment.



  • Decrease air pressure within the lungs.
  • Increase Volume of Thoracic cavity.
  • Contracting the muscle of the rib cage and the diaphragm.

Oxygen Delivery Factors

  • Surface area of the RBC.
  • Surface area of the alveoli.
  • Rate of respiration.

Partial Pressure

Gas Exchange in Alveoli



  • O2 taken up by blood and CO2 released.
  • Air in Alveoli will have a lower partial pressure of O2 and a higher partial pressure of CO2.

  • Inhale O2 leads to greater partial pressure of O2 and then released of CO2.

Quick Organ Functions


  • Spleen stores a volume and filters it but does not produce it.
  • Liver removes foreign material and detox chemicals in the blood.
  • Heart provides the pressure that enables the blood to travel throughout the body.
  • Vagus nerve slow the heart rate.

Systolic and Diastolic Pressure


  • Systolic pressure is higher than diastolic pressure.

  • Systolic pressure is the pressure of the ventricular contraction.
  • Diastolic is the pressure between contractions.

Bicarbonate

HCO3- Bicarbonate



  • Is to serve as a buffer to maintain a slightly basic (7.4) pH of the blood.