Parasitology Exam 1- UNT (Goven) questions and answers all are correct

Obligate Parasite - Answer-fully dependent on a host for the entirety of its life cycle Endoparasite - Answer-A parasite that lives within a host- INFECTS Ectoparasites - Answer-parasites that live on the external surface of a host- INFESTS What are the types of hosts? (6) - Answer-- Definitive Host - Intermediate Host - Transfer Host - Reservoir Host - Vector - Fomite Definitive Host - Answer-A host in which a parasite reaches the adult stage or undergoes sexual reproduction in/ on the host (e.g. Humans) Intermediate Host - Answer-a host that gives food and shelter to IMMATURE stages of a parasite Transfer Host - Answer-is not necessary for development but serves as vehicle for reaching final host (transfer host isn't harmed) Vector - Answer-Special type of transfer host; hosts a parasite for a specific life cycle stage, but also TRANSFERS the parasite (e.g. mosquito) Fomite - Answer-A PHYSICAL OBJECT that serves to transmit an infectious agent from person to person. Reservoir Host - Answer-An animal that harbors a species of parasite that is also parasitic for humans and from which a human may become infected.If you want to kill a parasite from a population then you would have to kill the ___________ and _________ host - Answer-Intermediate and Vector Host Exposure - Answer-to be/ being in the presence of an infectious agent Colonization - Answer-the infectious agent is in or on your body Infection - Answer-the agent has caused signs or symptoms Sign - Answer-Sign is very SPECIFIC, measurable indicator (e.g. temperature, heart rate, blood pressure Symptoms - Answer-Less defined, harder to measure (e.g. fatigue, sleepy, pain) Incubation Period - Answer-Time between exposure and signs/symptoms Latency - Answer-time from infection to the time you are infectious; from when you got it to when you become contagious. Infection - Answer-Infections cause signs and symptoms (require diagnosis) Disease - Answer-Cause pathology- tissue damage (require prognosis) How do parasites feed (2 ways)? - Answer-1. Some parasites utilize their host's food (e.g. tapeworm) 2. Some parasites feed on their host. Parasites that FEED on their host, can be grouped into 2 groups: - Answer-1. Blood Feeders 2. Lytic FeedersBlood Feeders - Answer-disrupt capillaries and suck blood out of them Lytic Feeder - Answer-take solid host tissue and liquify is via extra-organism digestion via enzymes Traumatic Damage - Answer-mechanical damag