100% de satisfacción garantizada Inmediatamente disponible después del pago Tanto en línea como en PDF No estas atado a nada
logo-home
Summary Body systems 4,76 €   Añadir al carrito

Resumen

Summary Body systems

 17 vistas  0 veces vendidas
  • Institución
  • ESO

Circulatory system, excretory system, nervous system and reproductive system

Última actualización de este documento: 2 meses hace

Vista previa 2 fuera de 8  páginas

  • 16 de agosto de 2024
  • 16 de agosto de 2024
  • 8
  • 2024/2025
  • Resumen
  • Escuela secundaria
  • ESO
  • Biología
  • 3
Todos documentos para esta materia (10)
avatar-seller
BiancaB0
BIOLOGY
1.0 Blood composition
A connective tissue that transports substances (nutrients and waste) defence,
regulates body temperature and prevents haemorrhage.
Blood cells and platelets are produced in the red bone marrow a tissue from inside
some bones.
• 55% Plasma: Yellowish liquid, 91% of water where substances such as proteins,
antibodies, hormones, ions, and gases are dissolved.
• 41% Red blood cells: Contain haemoglobin (a red-coloured protein that transports
oxygen). Don’t have a nucleus
• 4% White blood cells: Provide defence against pathogens or foreign substances.
There are several types of these, all have a nucleus.
• Platelets: They coagulate the blood to control bleeding. They are cell fragments.


2.0 Heart Anatomy
Surrounded by the pericardium (a double membrane)




2.1 Cardiac cycle
• 1 Systole: Atria contracts and blood is
pushed into the ventricles through the opened
atrioventricular valves.


• 2 Systole: Ventricles contract and blood is
pumped to the arteries. Atrioventricular valves
close.


• 3 Diastole: Cardiac muscle relax. Pulmonary

, and aortic valves close. Blood enters to atria.
3.0 Blood vessels
• Arteries: Carry blood from the heart to the rest of the organs. Are elastic and
strong, they have a thick layer of muscular tissue because blood circulates at
high pressure. Branch into arterioles.
• Arterioles: They form networks and they have thin walls so they can make
exchange with cells. They are connected to venules.
• Venules: They are joined to the veins.
• Veins: Carry blood back to the heart. Have thin walls because blood circulates at
low pressure. Have valves that prevent the blood from flowing backwards.


3.0 Blood circulation
The right side sends deoxygenated blood to the lungs where becomes oxygenated
and returns to the left side of the heart to be sent to the rest of the body.


EXCRETORY SYSTEM


1.0 Excretory system
Excretion: Process in which the body expels the waste.
Organs that are involved in this process:
• Kidneys: Form urine which contains urea, water, mineral salts and more waste
• Lungs: Remove Co2 from the blood
• Sweat glands: Produce sweat
• Liver: Cleans the blood and produces urea.


2.0 Urinary System Anatomy
Urinary system manufactures, stores and eliminates urine.




• Renal pelvis: Connects with the
ureter


• Ureters: Two ducts that collect
the urine. Connects kidneys with
the bladder.


• Bladder: Stores urine.

Los beneficios de comprar resúmenes en Stuvia estan en línea:

Garantiza la calidad de los comentarios

Garantiza la calidad de los comentarios

Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!

Compra fácil y rápido

Compra fácil y rápido

Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.

Enfócate en lo más importante

Enfócate en lo más importante

Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable. Así llegas a la conclusión rapidamente!

Preguntas frecuentes

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

100% de satisfacción garantizada: ¿Cómo funciona?

Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.

Who am I buying this summary from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller BiancaB0. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy this summary for 4,76 €. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

45,681 summaries were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 14 years now

Empieza a vender
4,76 €
  • (0)
  Añadir