ICSE Class 7 Biology, Unit 4: Human Body

What this unit aims at

In the previous classes, children were exposed to basic information regarding some of the organ systems in the human body (digestive, respiratory and circulatory systems). In this theme, children will study the excretory and nervous systems in the human body.

Your child should be able to

• define the term ‘excretion’ and its need/significance
• draw the outline figure of the human body and mark the location of kidneys, skin, sweat glands and lungs
• infer that the kidneys are very important as they filter the blood
• identify various parts of nervous system i.e. brain, spinal cord and nerves. discuss the need of spinal cord, brain, nerves for the body
• relate that all parts of the body are connected to the brain through the nerves
• list some of the activities that are under the control of the nervous system

Key concepts in this unit

• Excretory System Excretion: Definition.
• Organs and their excretory products (kidneys, sweat glands, lungs);
• Renal Excretory System - kidneys, ureter, urinary bladder, urethra (location and functions to be explained along with diagram);
• Role of kidneys infiltration of blood through millions of nephrons (details not required, structure of nephron not to be discussed); common disorders of the urinary system: Urinary Tract Infection, k…
• Nervous System Main parts: brain, spinal cord, nerves.
• Brain: cerebrum, cerebellum, medulla oblongata (location and function).
• Spinal cord: location and function.
• Nerves: what are nerves; their general function.