Kidney

... blood vessels, glomeruli (which are the kidneys' "filters") and urine tubes and is supported by a fibrous matrix. hilus : The opening in the ... support the cortex. They consist of lines of blood vessels and urinary tubes and a fibrous material. renal sinus : The cavity which houses the ...

Polymerase chain reaction

... a thermal cycler . This is a machine that heats and cools the reaction tubes within it to the precise temperature required for each step of the ... of the reaction mixture, a heated lid is placed on top of the reaction tubes or a layer of oil is put on the surface of the reaction mixture. These ...

Aseptic technique in microbiology

... except the specimen itself, until the entire procedure is finished. Preparing to execute the specimen transfer, the person would hold both of the tubes or flasks in one hand , probably the opposite of the writing hand. The person would then open the tube or flask containing the specimen source and ...

Cartilage

... in the pinna of the ear and several tubes, such as the walls of the auditory and eustachian canals and larynx . Cartilage is present to keep the tubes permanently open. Elastic cartilage is similar to hyaline cartilage but contains elastic bundles ( elastin ) scattered throughout the matrix. This ...

Endoplasmic reticulum

... apparatus. (10) Trans face of the Golgi apparatus. (11) Cisternae of the Golgi apparatus. The ER consists of an extensive membrane network of tubes and cisternae (sac-like structures). The membrane encloses a space, the cisternal space (or internal lumen) from the cytosol . This space is ...

Infertility

... as in IVF. Zygote intrafallopian transfer (ZIFT) in which eggs are removed from the woman, fertilized and then placed in the woman's fallopian tubes rather than the uterus. Gamete intrafallopian transfer (GIFT) in which eggs are removed from the woman, and placed in one of the fallopian ...

Lung

... able to expand and contract to some degree. As a result, air is sucked into and pushed out of the lungs through the trachea and the bronchial tubes or bronchi; these branch out and end in alveoli which are tiny sacs surrounded by capillaries filled with blood. Here oxygen from the air ...

Phloem

... flow, coupled with the fact that sap cannot with ease move between adjacent sieve tubes, it is not unusual for sap in adjacent sieve tubes to be flowing in opposite directions. Phloem tissue consists of sieve-tube members and companion cells . The sieve-tube elements are large, ...

Plant

... but are saprophytes : they obtain their food by breaking down and absorbing surrounding materials. Most fungi are formed by microscopic tubes called hyphae, which may or may not be divided into cells but contain eukaryotic nuclei . Fruiting bodies, of which mushrooms are the most ...

Plant

... but are saprophytes : they obtain their food by breaking down and absorbing surrounding materials. Most fungi are formed by microscopic tubes called hyphae, which may or may not be divided into cells but contain eukaryotic nuclei . Fruiting bodies, of which mushrooms are the most ...

Endoplasmic reticulum

... apparatus. (10) Trans face of the Golgi apparatus. (11) Cisternae of the Golgi apparatus. The ER consists of an extensive membrane network of tubes and cisternae (sac-like structures). The membrane encloses a space, the cisternal space (or internal lumen) from the cytosol . This space is ...

Endoplasmic reticulum

... apparatus. (10) Trans face of the Golgi apparatus. (11) Cisternae of the Golgi apparatus. The ER consists of an extensive membrane network of tubes and cisternae (sac-like structures). The membrane encloses a space, the cisternal space (or internal lumen) from the cytosol . This space is ...

Endoplasmic reticulum

... apparatus. (10) Trans face of the Golgi apparatus. (11) Cisternae of the Golgi apparatus. The ER consists of an extensive membrane network of tubes and cisternae (sac-like structures). The membrane encloses a space, the cisternal space (or internal lumen) from the cytosol . This space is ...