CPRS 22: Neural Control of Cardiovascular System Flashcards
Consider Cardiac Muscle Contraction
Heart rate is dependent on 2 things:
1.
2.
Stroke Volume is dependent on:
1.
Consider Cardiac Muscle Contraction
Heart rate is dependent on 2 things:
- Frequency of the SA Node impulses
- How fast the electrical signal is conducted
Stroke Volume is dependent on:
1. Contractile strength of cardiac muscle
Baroreceptors have sensitive to changes in blood pressure. They have free nerve endings and also _______ nerve endings.
Chemoreceptors responds to a chemical stimulus change. It has Type __ glomus cells connected to the synaptic ending of the nerve fibres.
Baroreceptors have sensitive to changes in blood pressure. They have free nerve endings and also encapsulated nerve endings.
Chemoreceptors responds to a chemical stimulus change. It has Type I glomus cells connected to the synaptic ending of the nerve fibres.
Name 3 places that baroreceptors are located
Atria
Aortic arch
Carotid sinus
Name 3 locations of chemoreceptors
- Central-
- Peripheral-
- Peripheral-
Name 3 locations of chemoreceptors
- Central- Hypothalamus
- Peripheral- Aortic Bodies
- Peripheral- Carotid Bodies
Carotid sinus (Baroreceptor) and Carotid Body (Chemoreceptor) nerve impulses are propagated through _________ nerve (CN_) to the medulla
Aortic arch (Baroreceptor) and Aortic Body (Chemoreceptor) nerve impulses are propagated through _________ nerve (CN_) to the medulla
Sensory neurones are of which shape?
Carotid sinus (Baroreceptor) and Carotid Body (Chemoreceptor) nerve impulses are propagated through Glossopharyngeal nerve (CNIX) to the medulla
Aortic arch (Baroreceptor) and Aortic Body (Chemoreceptor) nerve impulses are propagated through Vagus nerve (CNX) to the medulla
Sensory neurones are of which shape?
Pseudounipolar
Name the 3 nucleus of the medulla
1. Visceral Afferent
- Visceral Efferent
- Visceral Efferent
Name the 3 nucleus of the medulla
1. Visceral Afferent- Nucleus of Solitary Tract
- Visceral Efferent- Dorsal Motor Nucleus of Vagus Nerve
- Visceral Efferent- Nucleus Ambiguus
Parasympathetic has _____ preganglionic and _____ ganglionic neurons
Sympathetic has _____ preganglionic and _____ ganglionic neurons
Parasympathetic has long preganglionic and short ganglionic neurons
Sympathetic has short preganglionic and long ganglionic neurons
Somatic System
- Which type of receptor is there in the target organ
- What type of neurotransmitter is utilized
Somatic System
- Which type of receptor is there in the target organ
N1 Nicotinic Receptor
- What type of neurotransmitter is utilized
Acetylcholine
Parasympathetic (ganglion)
- Which type of receptor is there in the target organ
- What type of neurotransmitter is utilized
Parasympathetic (target organ)
- Which type of receptor is there in the target organ
- What type of neurotransmitter is utilized
Parasympathetic (ganglion)
- Which type of receptor is there in the target organ
N2 Nicotinic Receptor
- What type of neurotransmitter is utilized
Acetylcholine
Parasympathetic (target organ)
- Which type of receptor is there in the target organ
M Muscarinic Receptor
- What type of neurotransmitter is utilized
Acetylcholine
Sympathetic (ganglion)
- Which type of receptor is there in the target organ
- What type of neurotransmitter is utilized
Sympathetic (target organ)
- Which type of receptor is there in the target organ
- What type of neurotransmitter is utilized
Sympathetic (ganglion)
- Which type of receptor is there in the target organ
N2 Nicotinic Receptor
- What type of neurotransmitter is utilized
Acetylcholine
Sympathetic (target organ)
- Which type of receptor is there in the target organ
Alpha and Beta Adrenergic Receptor
- What type of neurotransmitter is utilized
Norepinephrine
For Alpha 1 and Beta 1 receptors:
For Alpha 2 and Beta 2 receptors:
Compare the potency of agonists NE and E
For Alpha 1 and Beta 1 receptors: NE>E
For Alpha 2 and Beta 2 receptors: E>NE
Compare the potency of agonists NE and E
