Veins: wide lumen, carry blood at low pressure, take blood to heart, have valves, carries deoxygenated blood (apart from pulmonary), Arteries: carry blood at high pressure, narrow lumen, take blood away from the heart, thick muscular walls, carries oxygenated blood (apart from pulmonary), Capillaries: one cell thick, large surface area, exchange of materials,

Veins Arteries and Capillaries N5 biology

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟