Liver-Heart

Today in the lab we observed the liver and the heart of a chicken. This are my drawings and some pictures:

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A liver weigh: 38.4g

A heart weigh: 26 g

 

Today in the lab we opened a kidney, it was awesome. This is a drawing that I made of the kidney I saw today.

Respiratory system

  •                Respiratory System

Chronic Obstructive Pulmonary Diseases:

  • lung deseases that block airflow
  • Blockage damages the lungs

 

Structure:

  • Lungs
  • Nasal cavity
  • Mouth
  • Larynx
  • Pharynx
  • Trachea
  • Bronchioles
  • Alveoli
  • Muscle(diaphragm,intercostal muscle,abdominal muscle, etcetera)

Gas Exchange

  • Main function of the system

 

COPD

  • Smoking
  • Exposure yo certain gases
  • Second hand smoke
  • Cooking fire without proper ventilation

Syptoms:

  • Wheezing
  • Difficulty breathing
  • Respiratory infection
  • No exercise
  • Fatigue
  • Chest tightness

Tratments:

  • Brochodilators
  • Oxigen therapy

Smoking:nicotine

  • Might get addicted mirroring someone
  • Person might just want to try

Why it’s hard to stop

  • They get addicted to the relief sensation

Effects of tobacco smoking

  • Irritation of trachea
  • Reduce lung function and inability to breath
  • Impairments of the lungs
  • Increase risk of lung infection
  • permanent damage

Biology Notes 01/10

Blood:

  • Plasma (liquid part of the blood)
  • red and white cells are carried in plasma
  • Plasma is mostly water
  • Plasma carries nutrients suck as Glucose, amino acids and mineral lons, also hormones and Carbon Dioxide.

Red Blood Cells

  • are made in the Bone Marrow
  • They do not live long
  • They also don’t have a nucleus
  • They contain pigment hemoglobin that carries oxygen

White Blood Cells

  • have a nucleus
  • They can move around easily
  • They clean up the body

Phagocytes and platelets

  • Digestive bacteria
  • Destroy pathogens
  • Small cells
  • Red bone Marrow
  • Blood clotting

Before this presentation, the only thing I knew was that blood was made in the bone marrow. Now I know a lot more, for example: Plasma, White cells, Red cells, Phagocytes and platelets, etcetera.