muscular system Flashcards
What is the most important functions of muscles
- ability to contract and relax
- movement
- ability to propel
what is antagonistic muscles
- work in pairs
- eg biceps and triceps
what is the types of muscles
- skeletal muscles-obserable movement
- smooth muscles- contraction of internal organs
- cardiac muscles- in the heart, makes heart beat
What is voluntary
-can be controlled
What involuntary
-done through nerve stimulation
what is tendons
-attach muscle to bone
What ligaments
- bones meet
- bones are held together with ligaments
What is cartilage
binding tissue that covers bones at the points
What is rickets
- found in breastfed babies whose mothers have malnutrition
- lake of calcium and phosphorous
What is osteoporosis
-loss bone mass
-deficiency of of vitamin D and calcium
-due to;
poor diet
physical exercise
What is arthritis
- causes swelling and pain in the joints
- happens in different forms
What is red blood cells
- disc-shaped cells
- formed in bone marrow
- transport oxygen
- large in size
what is hypertension and what causes it
- abnormally high blood pressure
- stress, smoking, obesity and unhealthy diet
What prevents capillary from collapsing and their space
- c shaped cartilage rings
- pg 63 69
to which substance does the oxygen bond in red blood cells
-haemoglobin
In which form does oxygen transport
-oxyhemoglobin
What is the function cerebrum
-controls senses speech voluntary movement memory emotions intelligence
What is the function cerebellem
- muscle coordination
- maintains balance
What is the function medulla oblongata
- controls reflexes
- extended spine
What is the function thalamus
-controls body temp
sleep
feeling hunger and thirst
aggression and reproduction
what does the sensory neuron
-conducts impulses from sense organs to the brain and spinal cord
what does the motor neuron
-conducts impulses from the brain and spinal cord to the other organs
what is the interneuron
-connects sensory neutron and motor neuron
