__________________________
Please ask questions in the comment section if you have any doubt and please rate.
the human eye is a complex sensing device for visible light. the optic nerve needs a minimum of 2.0 multiplied by 15J of energy to trigger a series of impulses that eventually reach the brain. how many photons of red light (682nm) are needed? I think I got the answer...just want to make sure I did it right. If you could show the steps and the answer, that would be great. Also, I know the question is written weird. My...
6. -/4 points series of impulses that eventually reach the brain The human eye is a complex ensing device for visible light. The optic nerve needs a minimum (a) How many photos of red (690 ) are needed photos (1) How many photos of blue (475 ) are needed photos
5.5 points Save As Cranial nerve II, the optic nerve sends nerve impulses to the brain carrying information about the things we see. These nerve fibers most likely belong to which division of the nervous system? sensory (afferent) division somatic nervous system sympathetic division parasympathetic division
The speed with which nerve impulses travel is determined in large part by the characteristic time constant τ=RC of the circuit formed by the resistivity of the axon and the capacitance of its wall. The resistance of a 1.00-mm-long segment of an axon is 26.5 MΩ. A) For nerve axons with no protective myelin sheath, the wall capacitance is about 3.24×10−10F for each segment of length L=1.00mm. Find the speed of the nerve impulses given by v=L/τ. B) Many axons...
A myelinated axon conducts nerve impulses at a speed of 30m/s . What is the signal speed if the thickness of the myelin sheath is halved but no other changes are made to the axon?
1.Explain what is meant by the "all-or-none" law in terms of transmitting impulses within a nerve cell 2.Describe how messages are transmitted from one nerve cell to the next
The human eye is most sensitive to ____. blue light green light red light all visible light equally 1. The wavelength corresponding to light with a frequency of 4 × 10 14 Hz is ____. 1.33 m 0.075 mm 7500 nm 750 nm 2. Violet light has a wavelength of about ____. 0.4 micrometers 500 nm 700 nm 0.2 mm 3. A 200-cd lamp is 4 m directly above a surface. The illumination is approximately ____. 12.5 lm/m2 25 lm/m2...
Light first passes through the _____________, a transparent covering of the eye, then through the _____________, the opening in the iris. Then the light passes through the _____________, which changes shape to focus the light so that it properly hits the retina. The light travels through the vitreous humor of the eye and then strikes the _____________, layers of cells in the back of the eye. The deepest layer of the retina is made of ____________, of which there are...
Be sure to answer all parts. What is the energy (in J) of one photon of 639 nm wavelength light? Enter your answer in scientific notation. Cx10J Enter your answer in the provided box. The human eye is a complex sensing device for visible light. The optic nerve needs a minimum of 2.0 x 10'7 J of energy to trigger a series of impulses that eventually reach the brain. How many photons of blue light (475 nm) are needed?
HQ18.52 Homework Answered Mammalian nerve cell impulses are examples of cells.