Titlebook: ;

Commentary

OFF

Sense Organs,Sense organs make an animal aware of what is going on in the internal and external environments. The . from the cranial and spinal organs end in . in numerous tissues in the body, and these receptors may be classified as:

mendacity

colloquial

Thyroid-Gland

Male Reproductive System,The male reproductive system functions to . and . to the female for fertilisation of the mature egg cell. It also synthesises the male sex hormone, ., which influences the development of the secondary sex characteristics and organs at puberty, e.g. facial hair, deepening of voice, enlargement of penis, etc.

白楊

MEET

Integumentary System (Skin),Skin is one of the largest organs of the body and has many functions, including the protection of the body from the adverse effects of the environment. It also receives stimuli from the outside world.

一大群

Reihenschaltung von Stromkreisen,Diese Aufgabe liegt z. B. vor bei einer Kraftübertragung, wie sie in der Fig. 88 dargestellt ist. Da diese Aufgabe eine der einfachsten ist und praktisches Interesse hat, werden wir sie eingehend behandeln.

嫻熟

Muscular Tissues,Muscles are responsible for movements of the body and organs, and are composed of elongated cells called fibres. Movements result from contraction of these fibres, between which are found connective tissue, blood vessels and nerves. Three types of muscle are recognised:

大喘氣