ANAPHY - PRELIM Flashcards
Which of the following is the synapse
between a somatic motor neuron and a
skeletal muscle fiber?
Neuromuscular Junction (NMJ)
What organelle digests worn-out organelles and extracellular materials?
Lysosome
In describing the special properties of muscular tissues, contractility refers to:
The ability to generate tension to do work
The () is a type of body fluid that is found between cells in tissues.
Interstitial Fluid
An organelle is
A cellular structure with a specific function.
Type of muscle contraction where there is constant tension, but the muscle fiber length shortens?
Concentric Contraction
Which of the following is not considered to be a flat bone?
Vertebrates
Skin aging may be attributed to which of the following?
Loss of elasticity of the skin
Loss of fat in the dermis
Decrease in the number of collagen bundles
This substance gives bone tissue its distinct hardness.
Hydroxyapatite
The following are true of parathyroid hormone, EXCEPT:
Produced in the thyroid gland
The following are the functions of the skeletal system, EXCEPT:
Production of Calcitonin
When someone tells you to lie on your stomach, this special movement is
Pronation
Muscle Contraction occurs because cross-bridges attach to and “walk” along the thin filaments at both ends of a sarcomere, what happens to the sarcomere in this situation?
It expands
What muscle type has a shape that is elongated with blunt ends?
Skeletal Muscle
It is the structural unit of compact bone.
Osteon
Production of gametes occurs through:
Mitosis
Which of the following is the skeletal muscle fiber’s contractile unit?
Myofibril
During childhood, long bones grow wider due to:
Osteoblast activity at bone surface
These cells participate in normalizing Ca levels in the body by releasing calcium stores in the skeletal system.
Osteoclasts
Level of study under Human Structural Biology involving easily observable large structures is () Anatomy.
Gross
What step in protein synthesis means to copy into a complementary sequence of codons in a strand of RNA?
Transcription
Anatomy is the study of () and Physiology is the study of ()
Structure, function
What is the thickest layer of the epidermis?
Stratum Spinosum
Which of the following muscles is named after its shape?
Procerus
Which of the following is true regarding skeletal muscles?
The greater the length of muscle fibers, the wider the range of motion
Estrogen has the following effects on the growing skeleton EXCEPT:
Increase in the height of the pelvis compared to males
Elongation of long bones during childhood takes place at the:
Metaphysis
What layer of the epidermis contains keratohyalin granules?
Stratum Granulosum
Which of the following best describes a muscle?
The muscle constitutes 40-50% of total body weight.
The main parts of a cell are the:
Nucleus, Cytoplasm, and Cell Membrane
The following are structures that make up the Peripheral Nervous System.
Spinal Cord
Melanin against UV light is what function of the skin?
Protection
Vasodilatation of superficial blood vessels on the cheeks is an example of what function of the skin.
Thermoregulation
This color is due to the oxygen-carrying pigment of red blood cells.
Hemoglobin
It attaches bone to bone.
Ligament
Why is ATP important?
ATP is our body’s energy transferring source.
The normal adult human skeleton has how many bones?
206
What is the sum of all the chemical processes that occur in the body?
Metabolism
Skeletal muscles may attach to bone or to other muscles, which of the following attachments is ropelike in shape?
Tendon
Which one of the following descriptions does not define a body in anatomical position?
Palms turned backward
Which of the following is the skeletal muscle fiber’s specialized endoplasmic reticulum?
Sarcoplasmic reticulum
Which of the following is the thin contractile protein?
Actin
What layer of the epidermis is NOT found in thin skin?
Stratum Lucidum
Which of the following is the major cell of skeletal muscles?
Skeletal muscle fiber
Calcium is needed for the proper functioning of the following, EXCEPT:
Nervous System
Heart Contraction
Blood clotting
Which of the following is NOT a short bone?
Hyoid
Which of the following is the skeletal muscle fiber’s cytoplasm?
Sarcoplasm
Which of the following is NOT TRUE?
Osteoclast: maintains bone matrix
Which of the following best describes a skeletal muscle?
This muscle is striated and voluntary
Which of the following is the skeletal muscle fiber’s plasma membrane?
Sarcolemma
The parietal bones form via intramembranous ossification. This means that during development the following structures are present, EXCEPT:
Hyaline template
Sebaceous gland secretion provides the following benefit/s:
Inhibits bacterial growth
Skin becomes soft
Prevents dryness
Which organ system is involved in allowing locomotion and maintaining posture?
Muscular
It is the visible portion of a nail.
Nail Body
Which of the following muscles has 3 bellies?
Triceps brachii
A membrane that lines the medullary cavity.
Endosteum
In reference to its attachment to the shoulder, the elbow is () to the wrist.
Proximal
The tough connective tissue containing osteoprogenitor cells found in the outer surface of bones is called the:
Periosteum
Severe infection of bones commonly caused by S.Aureus
Osteomyelitis
This is a term ensuring that the body’s internal environment remains constant despite changes inside and outside the body.
Homeostasis
This is the layer where appendages like hair follicles are found.
Reticular dermis
The beginning of the formation of the cleave furrow is observed in what stage of mitosis?
Anaphase
What layer of the epidermis is the source of new cells and shows plenty of mitotic figures?
Stratum Basale
Tissue type has seen lining surfaces and body cavities.
Epithelial
The lungs are located in which cavity of the body?
Thoracic
The following are found in trabeculae, EXCEPT:
None of the above
Lamellae
Water
Lacunae
Why is the nucleus so important in the life of a cell?
It directs most cellular activities.
What layer of the epidermis displays mostly dead and dying keratinocytes?
Stratum Corneum
What event in the somatic cell division describes the cell as not dividing and just replicating DNA?
Interphase
What membrane modification found at the apical surfaces of cells function for movement?
Cilia
In describing the special properties of muscular tissues, extensibility refers to:
The ability to be stretched beyond original length
How many false ribs attach directly to the thoracic spine?
10
The action of this/these muscle type/sis/are involuntary.
Cardiac and smooth
Vitamin C is needed for strong bones. This statement is
True. Vitamin C is essential for collagen synthesis, which in turn gives bones its tensile strength
When the cross-bridge generates force as it rotates toward the center of the sarcomere, you call this the:
Power stroke
Muscle cells having multiple and peripherally located nuclei.
Skeletal
What fundamental tissue type is the liver?
Epithelial
Which of the following best describes a cardiac muscle?
This muscle tissue is striated and involuntary
Hair is heavily distributed in the following EXCEPT
SOLES
Adipose tissue is classified as what fundamental tissue type?
Connective
Selective permeability is the
Ability of the plasma membrane to control passage of certain materials into and out of the cell
In Endochondral ossification, what major process takes place in the diaphysis but not the epiphysis?
Formation of Medullary Cavity
Intercalated discs are found in this muscle type/s
Cardiac
Which of the following is a long bone?
Distal phalanx, 2nd toe, left
What is the movement that forms an acute angle between approximating body parts?
Flexion
What are non-striated muscles?
Smooth
In describing the special properties of muscular tissues, electrical excitability refers to:
The property of responding to stimuli by producing action potentials
It is the movement from a higher to a lower water molecule concentration across a selectively permeable membrane.
Osmosis
Which of the following is the thick contractile protein?
Myosin
What parenchyma of connective tissue produces collagen and elastic fibers?
Fibroblasts
Skeletal muscles may attach to bone or to other muscles, which of the following is wide and flat?
Aponeurosis
Microscopically, spongy bone is composed of tree trunk shaped repeating units called:
None of the Above
Medullary
System
Osteons
Haversian System
The forehead is () to the nose
Superior
In describing properties of muscular tissues, elasticity refers to
The ability to return to original shape after contraction or extension.
Which is NOT a function of the nucleus?
Produce most of the cell’s ATP
What shape of cells is described as taller than they are wide?
Columnar
Which of the following best describes a smooth muscle?
This muscle is nonstriated and involuntary
These cells are capable of cell division and mature into bone-forming cells
Osteoprogenitor cells
Two or more atoms joined together are defined as
Molecule