Functon Of Living Organisms Flashcards
What are the human systems
Respiratory, skeletal, muscular, digestive, circulatory, nervous.
What is nervous tissue made of
Brain, spinal cord, nerves
What is muscle tissue consist of
Cardiac muscle, smooth muscle, skeletal muscle
What does epithelial tissue consist of
Lining of GI tract organs and other hollow organs, skin surface
What does connective tissue consist of
Fat and other soft padding tissue, bone, tendons
What makes up the nervous system
The brain, the nerves, digestive tract, spinal chord, gangilla.
What does the brain do
Perception, processing of sensory stimuli
Execution of voluntary motor responses
Regulation of homeostasis mechanisms
What are nerves
Fibres of sensory and motor neurones (automatic)
What is the digestive tract
The enteric nervous system (ens)
Located in the digestive tract
Is responsible for autonomous functions
Can operate independently of the brain and spinal chord
What is the spinal chord
Initiation of reflexes from ventral horn, lateral horn, grey matter
Pathways for sensory and motor functions between periphery and brain
What is the gangilla
Reception of sensory stimuli by coral root and cranial gangilla
Relay of visceral motor responses by automatic gangilla
What is the digestive system
Consists of the gastrointestinal tract plus the accessory organs of digestion (tongue, salivary glands, pancreas, liver, gal bladder)
What is the reproduction system
System of sex organs within an organism which work together for the purpose of sexual reproduction.
What is the circulatory system
Organ system which permits blood to circulate and transport nutrients, organ and co2, hormones and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilising temp and ph and maintain homeostasis.
What is the respiratory system
A biological system consisting of specific organs and structures used for gas exchange
What is the endocrine system
Collection of glands that secrets hormones directly into the circulatory system to be carried to target organs
What is the immune system
A host defence system. Comprising of biological structures and processes which protects against disease.
What is the lymphatic system
Part of the circulatory system and vital part of immune system. A network of lymphatic vessels that carry a clear fluid called lymph towards the heart.
What is the muscular system.
Comprised of skeletal, smooth and cardiac muscles. Permits movement of the body,maintains posture and circulates blood through the body. Controlled by the nervous system
What is the skeletal system
All the joints and bones of the body. Each bone is a living organ made up of cells, protein, fibres and minerals. Provides support and protection for soft tissues. Provides attachments points for muscles to allow join movements.
What is the urinary system.
Rental system. Contains kidneys, uterers, bladder and urethras. Eliminates waste from the body, regulates blood volume and pressure, controls electrolyte levels.
