Podcast
Questions and Answers
Which space contains cerebrospinal fluid?
Which space contains cerebrospinal fluid?
- Epidural space
- Peritoneal cavity
- Subarachnoid space (correct)
- Subdural space
What does the corpus callosum do?
What does the corpus callosum do?
- Integrates sensory and motor pathways
- Links the frontal and occipital lobes
- Connects the cerebellum to the spinal cord
- Connects the right and left cerebral hemispheres (correct)
What muscle is known as the 'smiling muscle'?
What muscle is known as the 'smiling muscle'?
- Orbicularis oris
- Masseter
- Buccinator
- Zygomaticus (correct)
Through which structure does the medulla oblongata descend into the vertebral cavity?
Through which structure does the medulla oblongata descend into the vertebral cavity?
What type of nervous tissue conducts a nerve impulse?
What type of nervous tissue conducts a nerve impulse?
What does the somatic motor neuron release into the neuromuscular junction?
What does the somatic motor neuron release into the neuromuscular junction?
Which of the following is true of the medulla oblongata?
Which of the following is true of the medulla oblongata?
What are the meninges?
What are the meninges?
What muscle separates the thoracic and abdominal cavities and is the chief breathing muscle?
What muscle separates the thoracic and abdominal cavities and is the chief breathing muscle?
What makes white matter white?
What makes white matter white?
Which muscle type is striated and involuntary?
Which muscle type is striated and involuntary?
Which muscles are primarily responsible for flexing the forearm at the elbow?
Which muscles are primarily responsible for flexing the forearm at the elbow?
What comprises the muscles of the quadriceps femoris group?
What comprises the muscles of the quadriceps femoris group?
Which protein forms cross-bridges with actin during muscle contraction?
Which protein forms cross-bridges with actin during muscle contraction?
Which structure connects muscle to bone?
Which structure connects muscle to bone?
What is the effect of K+ (potassium) efflux during an action potential?
What is the effect of K+ (potassium) efflux during an action potential?
What is the primary function of cardiac muscle?
What is the primary function of cardiac muscle?
Which of these muscles is not a part of the quadriceps femoris group?
Which of these muscles is not a part of the quadriceps femoris group?
What role do myosin and actin play in muscle contraction?
What role do myosin and actin play in muscle contraction?
Which muscle type is responsible for peristalsis in the digestive tract?
Which muscle type is responsible for peristalsis in the digestive tract?
What structure is responsible for connecting the right and left cerebral hemispheres?
What structure is responsible for connecting the right and left cerebral hemispheres?
Which muscle is primarily involved in elevating the eyelids?
Which muscle is primarily involved in elevating the eyelids?
What is the main function of the myelin sheath in nervous tissue?
What is the main function of the myelin sheath in nervous tissue?
What type of muscle is primarily responsible for voluntary movements?
What type of muscle is primarily responsible for voluntary movements?
Which layer of the meninges is closest to the brain?
Which layer of the meninges is closest to the brain?
Which of these muscles is primarily involved in chewing?
Which of these muscles is primarily involved in chewing?
What neurotransmitter is released at the neuromuscular junction to facilitate muscle contraction?
What neurotransmitter is released at the neuromuscular junction to facilitate muscle contraction?
What is myasthenia associated with?
What is myasthenia associated with?
Which type of nervous tissue is responsible for transmitting nerve impulses?
Which type of nervous tissue is responsible for transmitting nerve impulses?
Which muscle type is not striated and is involuntary?
Which muscle type is not striated and is involuntary?
What separates the thoracic and abdominal cavities?
What separates the thoracic and abdominal cavities?
Which of the following muscles is primarily involved in extending the forearm at the elbow?
Which of the following muscles is primarily involved in extending the forearm at the elbow?
Which muscle is part of the quadriceps femoris group?
Which muscle is part of the quadriceps femoris group?
What role does myosin play in muscle contraction?
What role does myosin play in muscle contraction?
Which structure primarily connects muscle to bone?
Which structure primarily connects muscle to bone?
What physiological process does K+ efflux during an action potential mainly contribute to?
What physiological process does K+ efflux during an action potential mainly contribute to?
Which of the following is NOT a function of cardiac muscle?
Which of the following is NOT a function of cardiac muscle?
Which muscle pair primarily works together to flex the forearm?
Which muscle pair primarily works together to flex the forearm?
Which muscle is NOT included in the quadriceps femoris group?
Which muscle is NOT included in the quadriceps femoris group?
What is the primary role of tropomyosin in muscle contraction?
What is the primary role of tropomyosin in muscle contraction?
Flashcards
Which muscle type is striated and involuntary?
Which muscle type is striated and involuntary?
Cardiac muscle is found only in the heart, responsible for pumping blood. It's involuntary, meaning we can't consciously control its contractions. Striations refer to the alternating light and dark bands visible under a microscope.
Which muscles flex the forearm at the elbow?
Which muscles flex the forearm at the elbow?
The brachialis and brachioradialis muscles are located in the upper arm and are responsible for bending the forearm towards the upper arm. The brachialis is deeper than the brachioradialis.
What are the muscles of the quadriceps femoris group?
What are the muscles of the quadriceps femoris group?
The quadriceps femoris consists of four muscles: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius. These muscles are all located in the front of the thigh and are responsible for extending the leg at the knee joint.
What protein forms cross-bridges with actin?
What protein forms cross-bridges with actin?
Signup and view all the flashcards
What structure connects muscle to bone?
What structure connects muscle to bone?
Signup and view all the flashcards
What does the efflux of K+ (potassium) during an action potential cause?
What does the efflux of K+ (potassium) during an action potential cause?
Signup and view all the flashcards
Subarachnoid space
Subarachnoid space
Signup and view all the flashcards
Corpus callosum
Corpus callosum
Signup and view all the flashcards
Zygomaticus major
Zygomaticus major
Signup and view all the flashcards
Foramen magnum
Foramen magnum
Signup and view all the flashcards
Neuron
Neuron
Signup and view all the flashcards
Acetylcholine (ACh)
Acetylcholine (ACh)
Signup and view all the flashcards
Mandible
Mandible
Signup and view all the flashcards
Medulla oblongata
Medulla oblongata
Signup and view all the flashcards
Meninges
Meninges
Signup and view all the flashcards
Diaphragm
Diaphragm
Signup and view all the flashcards
Study Notes
Cerebrospinal Fluid Location
- Cerebrospinal fluid is found in the subarachnoid space.
Corpus Callosum Function
- The corpus callosum connects the right and left cerebral hemispheres.
Smiling Muscle
- The zygomaticus muscle is known as the "smiling muscle".
Medulla Oblongata Descent
- The medulla oblongata descends into the vertebral cavity through the foramen magnum.
Nerve Impulse Transmission
- Neurons conduct nerve impulses.
Neuromuscular Junction Neurotransmitter
- Acetylcholine (ACh) is released into the neuromuscular junction by somatic motor neurons.
Mastication Muscle Insertion
- Muscles involved in mastication insert into the mandible.
Medulla Oblongata Characteristics
- The medulla oblongata is an infratentorial structure sensitive to opioids.
Meninges Composition
- Meninges are protective layers surrounding the brain and spinal cord.
Chief Breathing Muscle
- The diaphragm is the chief breathing muscle, separating the thoracic and abdominal cavities.
White Matter Composition
- White matter is composed of myelin.
Neurotransmitter Storage
- Neurotransmitters are stored within axon terminals of a neuron.
Eyelid Raising Muscle
- The levator palpebrae superioris muscle raises the eyelids.
Myasthenia Meaning
- Myasthenia means muscle weakness.
Striated and Involuntary Muscle Type
- Cardiac muscle is striated and involuntary.
Forearm Flexion Muscles
- The brachialis and brachioradialis muscles flex the forearm at the elbow.
Quadriceps Femoris Muscles
- The vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris are the quadriceps femoris group.
Actin Cross-Bridge Protein
- Myosin forms cross-bridges with actin.
Muscle to Bone Connection
- Tendons connect muscle to bone.
Potassium Efflux Effect
- The efflux of potassium (K+) during an action potential causes repolarization.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
