Bild

Siemens Stiftung

Entire ear section (b/w)

Unlabeled graphic:
Simple black and white cross-section of ear. For worksheets, printouts etc.

With the help of this graphic the most important functional areas of the ear and their significance in the hearing process can be explained.

Information and ideas:
The teacher can label the graphic together with the students on the computer screen or get the students to label it themselves either on a printout or at the computer screen.

Relevant for teaching:
The human body
Structure and function of a sensory organ

Bild

Siemens Stiftung

Sense organ of balance - position

Labeled graphic:
The cupola changes its shape when it is bent and stimulates the sensory hairs. The calcium carbonate crystals act as extra ballast.

The cupola (gelatinous mass) changes its shape when it is bent and stimulates the sensory hairs. The calcium carbonate crystals act as extra ballast. The lymph simply serves to absorb here.

Information and ideas:
This graphic is very useful for showing the function of the sense of position in the inner ear.

Relevant for teaching:
Structure and functions of a sensory organ
Reception of stimuli and processing of information

Bild

Siemens Stiftung

Middle ear section

Graphic with detailed labeling:
Section view of human ear with the individual parts of the middle ear.

The middle ear is formed by an air-filled cavity lined with mucous membrane and consists mainly of the tympanic cavity and the Eustachian tube.
The tympanic cavity contains the ossicles "malleus?, "incus? and "stapes?.
These are joined together loosely and can move so that, with their help, vibrations from the eardrum can be picked up and transmitted to the inner ear.

Information and ideas:
Can be used in worksheet, worked on together via digital projector, as an overhead transparency.

Relevant for teaching:
The human body
Structure and function of a sensory organ

Bild

Siemens Stiftung

; ;: Entire ear section - unlabeled

Unlabeled graphic:
Cross-section of the entire ear, for example, to be incorporated in presentations or for individual projection.

Cross-section of entire ear.

Information and ideas:
This graphic can be used to describe and explain the most important functional areas of the ear and their role in the hearing process.
The teacher can look at the graphic together with the students on the computer screen or get the students to do the labelling either on printouts or on the computer.

Relevant for teaching:
The human body
Structure and function of a sensory organ

Bild

Siemens Stiftung

Outer ear section

Graphic:
The most important parts of the outer ear with pinna, ear canal, hair follicles, ceruminous glands and eardrum.

The outer ear consists of the pinna and the ear canal. The ear canal ends at the eardrum.
In the membranous wall of the ear canal there are glands which produce cerumen (earwax). At the edge of the ear canal there are some small hairs, hair follicles, which serve as protection against foreign bodies.

Information and ideas:
Helpful to distinguish outer, middle and inner ear.
Can be used, for example in a worksheet, for work together in class with the digital projector, as overhead transparency.

Relevant for teaching:
The human body
Structure and function of a sensory organ
Functions of senses

Bild

Siemens Stiftung

Inflammation of the middle ear

Labeled graphic:
Section of an ear shows the regions affected by middle ear inflammation.

In cases of inflammation of the middle ear (Otitis media) the mucous membrane of the tympanic cavity is inflamed.

Middle ear inflammation is usually caused by infections of the nasopharynx region which rise up into the tympanic cavity via the Eustachian tube.

Information and ideas:
This graphic is good for discussing possible complications (for example "mastoiditis?). The students should be made aware of how important it is to have these diseases properly treated and to make sure that they recover fully and properly.
Further information regarding inflammation of the middle ear in particular and diseases of the ear in general is available as information sheet on the media portal of the Siemens Stiftung.

Relevant for teaching:
Hearing defect/hearing impairment

Bild

Siemens Stiftung

;: Child with cap

Photo:
The best protection against colds and consequently against inflammation of the middle ear is to wear a cap in the winter which covers the ears.

Acute inflammation of the middle ear is one of the most frequent illnesses that children get. Acute means it starts suddenly, is very severe but is usually over quickly as well. This kind of inflammation occurs more during the winter. Children who suffer from it usually had a cold before.
While acute middle ear inflammation is very painful, it usually heals up and is forgotten quickly provided it is treated and observed properly.

Information and ideas:
Use picture to introduce topic "Looking after the sensory organs" or the topic "Ear diseases".

Relevant for teaching:
Looking after the sensory organs
Personal health care

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Middle ear section - labeling arrows

Unlabeled graphic:
Section view of human ear with the individual parts of the middle ear - with arrows for detailed labeling.

The middle ear is formed by an air-filled cavity lined with mucous membrane and consists mainly of the tympanic cavity and the Eustachian tube.
The tympanic cavity contains the ossicles "malleus", "incus" and "stapes".
These are joined together loosely and can move so that, with their help, vibrations from the eardrum can be picked up and transmitted to the inner ear.

Information and ideas:
Can be used in worksheet, worked on together via digital projector, as an overhead transparency.

Relevant for teaching:
The human body
Structure and function of a sensory organ

Medientypen

Bild

Lernalter

11-18

Schlüsselwörter

Anatomy (human) Ear

Sprachen

Englisch

Dieses Material ist Teil einer Sammlung

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Sense of position - world not upside down

Photo:
Visual illustration of the sense of position at work: child is hanging upside down from bar and is not losing sense of direction.

We know even with our eyes closed whether we are upside down or whether we are holding our head down. Yes, even with our head down, we can see things the right way up. Our sense of position is the reason for that.

Information and ideas:
Use picture as introduction to sense of position: children enjoy such situations like this one at the playground. Children can tell the class and teacher when they become aware of their sense of position, (e.g. when they are on a roller coaster).

Relevant for teaching:
The human body
Structure and function of a sensory organ
Reception of stimuli and processing of information
Senses discover the environment

Bild

Siemens Stiftung

Inner ear section

Labeled graphic:
Section view with the most important parts of the inner ear. The most important parts are highlighted in color.

Both the sense of balance and the sense of hearing are situated in the inner ear.
The inner ear is formed by a complicated system of cavities. This system is called the bony labyrinth.
Distinction is made between the cochlea, the semi-circular canals and, in between, the vestibule. In the cochlea there are two openings each covered with a taut membrane. These are named after their shape, i.e. round window and oval window. The oval window is a sort of entrance for sound and the round window a sort of exit.

Information and ideas:
Helps to put the inner ear in the overall context of the structure of the ear.
Can be used, for example in a worksheet, for work together in class with the digital projector, as overhead transparency.

Relevant for teaching:
Structure and function of a sensory organ
Reception of stimuli and transmission of information
Functions of senses

Medientypen

Bild

Lernalter

11-18

Schlüsselwörter

Anatomy (human) Ear

Sprachen

Englisch