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Palisade mesophyll
mésophylle m palissadique

Intermediate fabric. Photosynthetic tissue - the main photo synthesizing tissue in the plant leaf. It is located under the upper epidermis and contains many chloroplasts.
See leaf.


pancreas
pancreas m

pancreas. A gland found near the duodenum in vertebrates. This gland releases an alkaline fluid into the duodenum that contains digestive enzymes such as lipase and amylase. see digestion. trypsin and trypsin amylase. The pancreas also contains tissue known as the islets of Langerhans, which secretes
Insulin hormone


parasite
parasite m

parasite. A membership feeds in or on another membership called the host, and the host does not benefit from this relationship, which may be harmful to her. Human parasites include: fleas, lice, and tapeworm.


parental generation
Generation of parents

Parental generation The first organisms crossed in a breeding experiment produce progeny offspring called the first generation, F. generatin
See monohybrid inheritance.


patella
patelle f

Patella. The bone above the interface of the knee joint in many vertebrates. It is also called in humans. See endoskeleton. kneecap


pathogen
pathogène

nurse. Disease generator. A term used to describe a parasitic organism that causes disease in another species.


pectoral
pectoral

Thoracic A description of the anterior end of an animal's torso to which the two front limbs (i.e. the shoulders) are attached.

pelvic
pelvien

pelvic. Description of the part of the animal's body that forms the lower abdomen to which the hind limbs are attached.


penis
penis m

rod. An organ in mammals that inserts sperm into the female's body. It also contains the urethra through which urine is excreted.
See fertilization in humans.


pentadactyl tip
This name is pented type

Five-fingered tip. A five-toed limb characterizes tetrapods. There is a basic arrangement of bones that appears to be modified in many species. See endoskeleton.

Rear end
thigh
Front end
Humerus
Tibial fibula
Complete ossicles
Metatarsal bones
Salamiyat
ulna
As a lesson
Metacarpal ossicles
Salamiyat


pepsin
pepsine f

Pepsin. Protease enzyme is secreted by the stomach wall of vertebrate animals, along with hydrochloric acid. The acid provides a suitable pH for pepsin to digest long protein chains and convert them to shorter chains of amino acids called peptides.


peptide
peptide m

Peptide. A compound consisting of two or more amino acids linked between the amino group of one and the acid group of the other. The bond between adjacent amino acids is called a peptide bond, and when many amino acids are joined in this way, the whole group is called a polypeptide, which is the basis of the protein structure.


peristalsis
first f. peristaltisme m

Peristalsis. Peristaltic movement. Waves of muscle contractions pass longitudinally and cause movement of the contents of tubular organs, as in the alimentary canal in mammals, as well as the ureters and oviducts. Peristaltic movement results from rhythmic, coordinated contraction and relaxation of involuntary, circular and longitudinal muscles. See - antago nistic muscles.

Longitudinal contractile muscle
Another is round and relaxed
Longitudinal muscle
Round muscle