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Layers of the skin; cutaneous senses

Layers of the skin; cutaneous senses

The skin is the soft outer covering of our body, its three layers are the epidermis, the dermis and the hypodermis.



Apdare, pirmā aizsardzības līnija, epidermu, dermā, hipodermis, ādas sajūta, stratificēts epitēlijs, keratinizēts epitēlijs, maņu orgāns, apvalks, sviedru dziedzeris, tauku dziedzeris, matu spuldze, keratīns slānis, mati, stimuls, signāls, nervu sistēma, Centrālā nervu sistēma, uztvere, receptoru, sāpes, siltums, cilvēks, Bioloģija

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Connective tissues

Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.

Human skeleton

Our body´s internal support structure to which skeletal muscles are attached.

Adrenaline (advanced)

Adrenaline, also known as epinephrine, is a hormone produced in our body in stressful situations and plays an important role in the fight-or-flight response.

Muscle tissues

The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.

The mechanism of vision

The curvature of the lens of the eye changes when we look at a distant or at a near object, to ensure a sharp image.

The sense organs

Organs that detect signals of the environment or of the body and transmit them to the brain as nerve impulses.

The withdrawal reflex

The withdrawal reflex is a spinal reflex that ensures moving away from potentially damaging stimuli.

Patellar reflex

The reflex triggered by the stretching of the thigh extensor muscle is the patellar reflex.

Types of feathers

The animation demonstrates the most important types of feathers and their fine structure.

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