Podcast
Questions and Answers
What is the main function of the retina?
What is the main function of the retina?
- Transmitting taste signals to the brain
- Processing olfactory signals for transmission
- Processing electromagnetic energy in the retinal image into neural signals (correct)
- Converting sound waves into neural signals
Which part of the eye supports the retina only at two regions?
Which part of the eye supports the retina only at two regions?
- Vitreous humor (correct)
- Ora serrata
- Optic nerve head
- Choroid
Which layer of the retina is firmly attached at two regions, around the optic disc and at the ora serrata?
Which layer of the retina is firmly attached at two regions, around the optic disc and at the ora serrata?
- Pigment epithelium (correct)
- Inner nuclear layer
- Nerve fibre layer
- Layer of rods and cones
What is the average thickness of the retina?
What is the average thickness of the retina?
Which layer of the retina forms a junction with the vitreous?
Which layer of the retina forms a junction with the vitreous?
What is the total area of the retina?
What is the total area of the retina?
What is the function of the retinal pigment epithelium (RPE) cells?
What is the function of the retinal pigment epithelium (RPE) cells?
What is the structure that links the outer segment to the inner segment of the photoreceptor cell?
What is the structure that links the outer segment to the inner segment of the photoreceptor cell?
What is the total length of the outer & inner segments of both rods & cones?
What is the total length of the outer & inner segments of both rods & cones?
What is the composition of the outer segments in cones?
What is the composition of the outer segments in cones?
What fills all the extracellular space in the layer containing the cell membrane of the receptors and Müller cell membranes?
What fills all the extracellular space in the layer containing the cell membrane of the receptors and Müller cell membranes?
What is the function of the zonular adhesions linking the cell membrane of the receptors and Müller cell membranes?
What is the function of the zonular adhesions linking the cell membrane of the receptors and Müller cell membranes?
What is present in the cell body of retinal pigment epithelium (RPE) cells?
What is present in the cell body of retinal pigment epithelium (RPE) cells?
What does Bruch's membrane do?
What does Bruch's membrane do?
Where do rods replace cones entirely?
Where do rods replace cones entirely?
What is the structure that extends from the ora-serrata to the edge of the optic disc?
What is the structure that extends from the ora-serrata to the edge of the optic disc?
What is the function of the extraocular muscles?
What is the function of the extraocular muscles?
Which muscle is responsible for moving the eye laterally?
Which muscle is responsible for moving the eye laterally?
How does a muscle contraction initiate in the extraocular muscles?
How does a muscle contraction initiate in the extraocular muscles?
What provides for the precise fine motor control of extraocular muscles?
What provides for the precise fine motor control of extraocular muscles?
What characterizes the extraocular muscles compared to skeletal muscles?
What characterizes the extraocular muscles compared to skeletal muscles?
What is the velocity of saccades, as supported by the extraocular muscles?
What is the velocity of saccades, as supported by the extraocular muscles?
What is the first step in the sliding ratchet model of muscle contraction?
What is the first step in the sliding ratchet model of muscle contraction?
Which event occurs after the binding of calcium ions to the troponin-tropomyosin complex in muscle contraction?
Which event occurs after the binding of calcium ions to the troponin-tropomyosin complex in muscle contraction?
What is the last step in the sliding ratchet model of muscle contraction?
What is the last step in the sliding ratchet model of muscle contraction?
Which of the following represents the anatomical sequence of the spiral of Tillaux involving the extraocular muscles?
Which of the following represents the anatomical sequence of the spiral of Tillaux involving the extraocular muscles?
What is the function of the largest extraocular muscle, the medial rectus?
What is the function of the largest extraocular muscle, the medial rectus?
What does ATP attachment enable in muscle contraction?
What does ATP attachment enable in muscle contraction?
What initiates the exposure of an active site on the actin protein in muscle contraction?
What initiates the exposure of an active site on the actin protein in muscle contraction?
In muscle contraction, what causes the head to tilt towards the shaft of the myosin filament?
In muscle contraction, what causes the head to tilt towards the shaft of the myosin filament?
Which structure marks the start and end points of the spiral of Tillaux involving extraocular muscles?
Which structure marks the start and end points of the spiral of Tillaux involving extraocular muscles?
