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Lecture Test 1

Helps to study the structures of the human body

QuestionAnswer
The type of epithelium found in the testes that consists of multiple layers of cube shaped cells are called _____________________ Stratified cuboidal epithelium
Stratum _________________ is a layer of the epidermis that may or may not be present, depending on the thickness of the skin. The cells here have no visible organelles, so the zone is relatively featureless and transparent Lucidum
It takes three _____________ in a DNA molecule to code for an amino acid Nucleotide
___________________ are flat melanized patches of skin that vary with heredity and exposure to sun Freckles
_________________ is movement of the feet di that the soles are turned away from one another Eversion
The scrotum (which is found near the inferior end of the spine) would fall under the category of which of the following bone types Irregular
A ________________ plane divides the body into left and right portions Sagittal
Cells that are ______________________ (such as those of skeletal muscle) are long, slender, and thread-like Fibrous
A(n) ____________________ is a structure that performs a specific function within a cell. The smooth endoplasmic reticulum is an example of such a structure Organelle
The layer of connective tissue on the inside of the diaphysis of a long bone is called the _____________________ Endosteum
The ______________________ system is used for internal communication and coordination; it includes organs such as the pituitary gland and thyroid gland Endocrine
___________________ are bone cells that dissolve bone tissue on the bone surface Osteoclasts
A ______________ is a junction between two cells that mechanically links the cells together, so that they're not easily pulled apart from one another Desmosome
Growth due to cell multiplication (rather than the enlargement of existing cells) is called Hyperplasia
__________________ is the major producer of blood cells, including most cells of the immune system Red bone marrow
_____________ are granules composed of ribosomal RNA and enzymes that read sequences of messenger RNA to assemble sequences of amino acids to make proteins. They may be found alone or within rough endoplasmic reticulum Ribosomes
_______________ is the production of new cells that are just like the odd cells, for growth or tissue repair Mitosis
In the tissue of the lungs, you may find a single layer of flat cells that allows for rapid movement of oxygen from one side of a membrane to the other. Such tissue would be called___________________ Simple Squamous
DNA is important in human anatomy because it codes for the way amino acids are put together to make _______________, which are important in structures like hair muscle, and collagen Proteins
___________________ are cells that produce keratin Keratinocytes
_________________ is found in place like the external ear, where structures need to be very flexible but should also return to their regular shape Elastic Cartilage
________________ is a reddish yellow pigment that accumulates in the keratinocytes of the stratum basale and stratum spinosum Pheomelanin
Some proteins in the membrane of a cell can connect to the proteins of a neighboring cell, allowing the two cells to stick together. These are called__________________ Cell adhesion molecules
A(n) ________________ is a massive process unique to the femur Trochanter
_________________ are cells in connective tissue that secrete heparine or histamine to influence blood flow Mast cells
_______________ glands are considered holocrine glands because their secretion consists of broken down cells that are replaced by mitosis Sebaceous
_______________ is the general term for the loss of bone Osteopenia
A ______________ degree burn involves damage to all of the layers of the epidermis and dermis. it may require skin grafts, but the person may feel no pain Third
The _____________________ is the portion of the fingernail in which cell division takes place, allowing the nail to grow in length Matrix
The __________________ of a cell is essentially a two-layered lipid film with proteins embedded in it Plasma membrane
The inorganic matrix of bone is composed primarily of calcium and _______________ Phosphorus
_______________ stratified squamous epithelium provides a surface that is abrasion resistant but also moist and slippery. It's found in places like the mouth, esophagus, and vagina Nonkeratinized
Osteocytes are essentially bone-building cells which have become trapped in matrix they deposited. The "bubbles" in which we find these cells are called___________________ Lacunae
In comparison to the ears, we might describe the nose as more ________________ Medial
What's the secretion that keeps the eardrum pliable and waterproofs the ear canal? Cerumen
_________________ tissue has bundles of collagen fibers that are closely packed and that run in apparently random directions. We might find this in places where tension may be applied from different directions. Dense irregular connective
_____________ is a phrase of mitosis in which the chromatids are pulled apart by contraction of spindle fibers from opposite poles Vasoconstriction
The ____________ is a layer below the reticular layer of the dermis. Its highly vascular, so drugs are often injected here. Anaphase
Hair that is relatively flat in cross-section is most likely to appear ______________ Hypodermis
Bone can grow by adding more matrix internally (within the epiphyseal plate to lengthen the bone). This type of growth is called ____________ growth Tightly Curly
______________ are considered the smallest units that are alive, because they have all of the parts needed to carry out basic functions of life Cells
In parts of the respiratory tract you might find epithelial tissue that may appear to consist of multiple layers of tail and skinny cells, but it's really a single layer of cells that are not all the same height. This would be considered ________ epitheli Pseudostratified columnar
Cell size is limited by the relationship between its surface area and its ________________, because all the internal parts of the cell need to be absorb nutrients and get rid of waste Volume
_______________ muscle has short branched cells, each with one nucleus and visible intercalated discs. It's used for movements that involuntarily pump the blood of the body Cardiac
In endothelium, surfaces of the cells that face away from the basement membranes are called ____________ surfaces. Apical
_______________ is an important function of the skin Production of vitamin D
Hair that contains a lot of eumelanin would most likely appear _______________ Black
A(n) ____________ is a process of a neuron that sends signals away from the soma Axon
___________________ are structures that extend from the cell surface in order to increase surface area ( in places like the intestine) Microvilli
The _____________ is the outer layer of a hair follicle (it is not direct contact with the root of the hair, and it is derived from the dermis) Connective tissue root sheath
_________________ is movement of materials through a membrane caused by higher pressure on one side of the membrane than the other. Filtration
The _______________ is the region we typically call the ankle. Tarsus
______________ is the study of tissue Histology
Adenine and guanine are double- ringed nucleotides called a(n) _______________ Purines
Where might one find an osteon? Within compact bone
Which type of tissue might you find in the tibia of a living person? Osseous Tissue, Cartilage, Nervous Tissue,
Forward movement of a body part, on a plane parallel with the ground, is called ________________ Protraction
What is a condition of the anatomical position? Palms are turned forwards
The attachment of a tooth is to its socket is called a _________________ Agomphosis
Identical twins share all of the following except Finger prints
The _________________ region is the region from the elbow to the wrist Antebrachial
Most of a person's sweat glands are _____________ which produces a watery perspiration to cool the body Merocrine sweat glands
The stomach, kidney, and small intestine are found within the ___________ body cavity, below the diaphragm Abdominal
The round or oval shaped structure within a cell that contains DNA is called the _________________ Nucleus
Created by: mar2769