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3ESO Sensory receptors - Contenido educativo

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Subido el 15 de febrero de 2021 por Marta G.

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Hello, welcome to this new unit. 00:00:00
After you have studied the nervous and endocrine system, 00:00:03
all the coordination centers in our body, 00:00:06
let's go in to see how we receive the information from the outer world. 00:00:09
Unit number 8, sensory receptors. 00:00:13
On our first point, we're going to talk a little bit of the different types of receptors 00:00:26
that we have in our body. 00:00:30
Point number 1, sensory receptors. 00:00:32
In class, I'm just going to give you a photocopy, in fact, a photocopy with two circles. 00:00:34
In these two circles, we're going to make a flap, something like this, so we're going 00:00:42
to leave a space here in the middle, we're going to make flaps that open and close. 00:00:48
As you have seen, in the outer circle we have a rectangle which says sensory receptor, underneath 00:00:58
we are going to write the definition of it. 00:01:07
Sensory receptors, specialized neurons capable of transducing sensory stimuli into nerve 00:01:10
impulses. 00:01:19
Underneath the flap that says according to the stimulus they receive, you should have 00:01:20
something like that photoreceptor mechanoreceptor chemoreceptors and thermoreceptors also there's 00:01:26
a middle line here we have here stimuli location what are we gonna write here we're gonna write the 00:01:32
different information about what stimuli the photoreceptor received what location the 00:01:40
photoreceptor have uh what stimuli the chemoreceptor received what location the chemoreceptors have 00:01:46
The photoreceptors, as you could guess, they are our eyes, so location is the eye, and the stimuli is the light that we receive from the outer wall. 00:01:53
Mechanoreceptors are going to receive mechanical stimuli from the outer wall. 00:02:07
What are mechanical stimuli? 00:02:14
Our stimuli that include pressure, contact and sound. Sound is also a mechanical stimuli. 00:02:16
What are the organs or the places in our body that are going to have these receptor cells? 00:02:26
We have the skin, our muscles, the joints. Remember that the joints in Spanish are articulaciones. 00:02:33
they are the parts that join the muscle with the bones, and also the ear for the sun. 00:02:43
The chemoreceptors are going to identify chemical changes, chemical molecules that are around, 00:02:50
and they are going to stimulate certain parts of our body, like our mouth and our nose. 00:02:58
So, flavor and smells are chemical stimuli. 00:03:06
Thermoreceptors detect the temperature, if it's cold, if it's hot and all the temperatures in between. 00:03:11
The part of our body that detects this is our skin. 00:03:20
On the lower part of our flag, here the bottom part, you should have the part that says according to the location. 00:03:25
We have two different types depending on where these receptor cells are located. 00:03:33
they can be internal receptors or external receptors internal receptors 00:03:39
will be located in internal organs imagine for example that I feel stomach 00:03:47
ache I feel pain okay I feel pressure for example because I have ate a lot and 00:03:54
my stomach is moving a lot then I have internal receptors to have these 00:04:01
feelings whereas external receptors they are going to be located on the surface 00:04:06
of the body so all the skin receptors are external the eyes the ears will be 00:04:13
internal we have different examples here of internal and external receptors 00:04:21
Ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha. 00:04:36
Idioma/s:
en
Autor/es:
Marta García Pérez
Subido por:
Marta G.
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
107
Fecha:
15 de febrero de 2021 - 8:29
Visibilidad:
Clave
Centro:
IES FORTUNY
Duración:
04′ 43″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
336.74 MBytes

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