Science 6

• Hematopoiesis is the process in which blood cells are produced
• The axial system consist of the spinal cord and the cranium
• The appendicular system consists of the scapula, hip bones and clavicle
• The hinge joint allows movement in one direction only
• The cranium is an example of an immovable joint.
• Ball & Socket Joint allows movement in all directions.
• Rotation movement is done by the pivot joint.
• Tendons connect bones and muscle.
• The clavicle is the top part of the shoulder while th scapula is the back part.
• The fingers are composed of phalangeal bones
• Bones are made of collagen fibers.
• Vitamin D is important for calcium absorbtion.
• RBC, WBC and platelets are synthesized in the red bone marrow.
• The yellow bone marrow is made of adipose tissue
• The dermis is 15-40 times thicker than the epidermis
• Epidermis secretes Keratin which make the skin party-waterproof.
• Sebaceous glands secrete oil to keep the skin moisturised.
• Connective tissues bind our body and help in locomotion.
• The three main processes of the digestive system are digestion, absorption and elimination.
• Bolus are chewed food.
• Defecation is the process of removal of waste or feces.
• Vitamin E makes our skin healthy.
• Interneurons connect sensory neurons to a motor neuron.
• Pons control sleep-wake cycle and breathing.
• The Brain Stem is divided into the Pons, Midbrain and the Medulla Oblongata.
• The Midbrain controls sensory integration.
• The spinal cord receives the electrical messages and sends it to the brain.
• The Nervous system is dived to the PNS and CNS
• The Right Hemisphere control numerical, logical and scientific skills while the Left Hemisphere control music, 3D imagination and arts.
• Right hemisphere controls left hand control and the Left Hemisphere controls right hand.
• There are 1 million neurons in the eye and 100 million in the brain.
• The cerebrospinal fluid insulate and fill the spinal cord and brain.
• The corpus callosum connects the left and right hemispheres.
• Respiration is the process of gas exchange the the delivery of oxygen to the blood vessels.
• The cerebellum is connected by the vermis.
• Folia surrounds the cerebellum
• Balance, body movement and locomotion is controlled by the cerebellum.
• Homeostasis is the internal balance of our body.
• The hypothalamus controls homeostasis.
• The thalamus act as the central relay for neurons.