WorksheetsA.1.1.1 Inter-system comunication (part 3)
Total questions: 14
Worksheet time: 7mins
What is the first step in the sensory stimulus leading to a motor response?
Sensory stimulus received
CNS sends a message
Motor response occurs
Information travels along motor nerves
Which part of the nervous system is responsible for sending messages to skeletal muscles?
Peripheral nervous system
Motor nerves
CNS
Sensory nerves
What role does the hypothalamus play in temperature control?
Stimulates muscle contraction
Maintains body temperature
Controls breathing rate
Regulates heart rate
What is the function of vasodilation?
Decreasing body temperature
Increasing heart rate
Widening of blood vessels
Narrowing of blood vessels
What is the sequence of excitation in the heart initiated by?
Bundle of His
Atrioventricular node
Sinoatrial node
Purkinje fibres
Which nerve slows the heart rate?
Vagus nerve
Sympathetic nerve
Phrenic nerve
Accelerator nerve
What is the anticipatory rise in heart rate associated with?
Lower pH levels
Decreased blood pressure
Adrenaline production
Increased oxygen levels
Which receptors relay information about blood pressure?
Muscle proprioceptors
Photoreceptors
Baroreceptors
Thermoreceptors
What do sweat glands help regulate?
Blood pressure
Body temperature
Breathing rate
Heart rate
What is myogenic contraction?
Contraction influenced by hormones
Contraction requiring nerve impulse
Contraction on its own
Contraction initiated by the brain
Which muscles are stimulated to contract more forcefully during exercise?
Smooth muscles
Cardiac muscles
Inspiratory muscles
Skeletal muscles
What does the respiratory centre in the brain respond to?
Increased heart rate
Lower pH or higher CO2 levels
Decreased body temperature
Increased blood pressure
What is the role of muscle proprioceptors?
Control body temperature
Stimulate sweat glands
Relay information to respiratory centre
Regulate heart rate
What happens to the heart rate during exercise?
It increases
It fluctuates randomly
It remains the same
It decreases
