Human Heart and Blood Circulation

Cortisol is known as the 'stress hormone,' which controls ______

Positive Feedback reinforces the initial ______

Irregular Bones have complex shape that don’t fit in other categories. Found in Vertebrae and Sacrum, they provide support to protect internal ____________.

Aldosterone regulates salt and water balance and maintains normal blood ______

The Articular Cartilage covers the ends of bones within joints, articulating other bones. The Epiphyseal line, a thin line, replaces and becomes the epiphysis line, stopping ____________.

The Diaphysis is the central tubular shaft that connects two ends (epiphysis) of the bone. It provides structural support & muscle attachment. The compact bone contains ____________ which provide strength, support, and protection to the inner structures of bones.

The Medullary cavity is the central cavity that contains bone marrow. It consists of yellow bone marrow which is composed of ____________ tissues.

Negative Feedback counteracts the initial ______

The testes produce testosterone which controls the development of secondary sex characteristics, muscle mass, bone density, and ______

Estrogen controls secondary sex development and initiates uterine development during the ______ cycle

Spongy bone contains marrow and compartment. It consists of red bone marrow which is the only site of blood formation in adults, slowly replaced by yellow marrow as it gets ____________.

Metaphysis is where the diaphysis and epiphysis connect, playing a role in bone ____________ and repair.

The brain receives sensory information, processes it, and sends out signals for appropriate responses. The ______ acts as a pathway for transmitting signals between the brain and the rest of the body.

Functions such as consciousness, memory, learning, and decision-making are carried out by the ______.

The Peripheral Nervous System (PNS) controls the involuntary functions of the body. The ______ nervous system transmits action potential from CNS to skeletal muscle.

The Autonomic Nervous System transmits signals from the CNS to smooth muscle and regulates involuntary bodily functions, such as heartbeat, digestion, and breathing. It consists of the sympathetic and ______ divisions.

T cells destroy bodies own ______

B cells produce anti-bodies that are used to attach in a ______ and toxins

Eosinophils attack and kill parasites & ______

Basophils release ______ to control immune body response

Monocytes are responsible for ______ help breakdown bacteria

Neutrophils kill and digest ______ & fungi

The sympathetic division of the Autonomic Nervous System is responsible for fight-or-flight responses and prepares the body for action in response to perceived threats or stressors. The ______ division, on the other hand, promotes rest and digest activities.

Arteries pump the blood away from the ______

Capillaries connect to the arteries and ______

Veins return blood to the ______

The septum divides the right and left sides of the ______

The endocardium provides a smooth surface for blood flow within the heart ______

The pericardium surrounds and protects the ______